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  • INSTRUMENTATION AND PHOTOGRAPHY  (3,697)
  • ASTRONOMY
  • 1980-1984  (3,012)
  • 1965-1969  (2,419)
  • 1925-1929
Collection
Keywords
Years
Year
  • 101
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    Total iron analysis by ancillary non- dispersive x-ray fluorescence instrumentation (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Feasibility of total iron analysis by X-ray fluorescence detection in X-ray diffractometer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 102
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    A spark counter for recording cosmic- radiation particles (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Design and efficiency of large area spark chamber for counting cosmic ray particles
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 103
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    An air-filled spark chamber (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Small experimental air-filled spark chamber for recording cosmic ray showers
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 104
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    Development of electronic visual instrumentation (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Development of electronic visual instrumentation for spacecraft applications
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 105
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    Single crystal fast neutron spectrometer for measuring continuous spectra (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Single crystal fast neutron spectrometer for measuring continuous spectra
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 106
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    Research and development in instrumentation for static testing (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Static testing program on cryogenic fuel density measurement, mass flow meters, damped accelerometers, and digital transducer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 107
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    Automated ultrasonic scanning by triangulation methods - The Dickinson system (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Flaw detection by ultrasonic scanning using triangulation methods
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 108
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    Intensity microphotometer based on the MF-4 (1967)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Intensity microphotometer design in which input signal is converted by piecewise-linear diode approximators
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 109
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    Development of a solid-state image converter (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Solid state image converter capable of imaging radiation from near infrared to 11,000 Angstrom
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 110
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    Generation of horizontal jitter requirement in an analog-scan video system (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Generation of horizontal jitter requirements in analog scan video system
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 111
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    Some characteristics of a miniature stress transducer (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Miniature stress transducer characteristics
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 112
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    Ultimate sensitivity of imaging devices (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Ultimate sensitivity of imaging devices - vidicon sensitivity
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 113
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    A raster generator for use in the measurement of shock velocities (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Raster generator for shock velocity measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 114
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    Bimat film processing for ranger ix (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Diffusion transfer process film processing for Ranger IX
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 115
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    Standards, sources, and detectors in radiation measurements (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Standards, sources, and detectors in radiation measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 116
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    Signal conditioning circuit for an oscilloscope display of bending (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Oscilloscope display of space vehicle bending motions using switching circuit for sampling accelerometer outputs from vehicle
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 117
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    Thermal sensor design for glide reentry vehicles (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Thermal sensors for measuring surface temperature and heat flux on glide reentry vehicles
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 118
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    Atomic energy commission high altitude sampling systems (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: High altitude sampling systems - balloon and rocketborne samplers for collection of radioactive particles and gaseous contaminants
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 119
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    An airborne wave meter (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Airborne radar system to measure height of ocean waves
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 120
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    Pegasus c with detachable panels news release (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Plans to attach removable panels to Pegasus C satellite to study space environment
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 121
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    Detector research (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Pulse shape discrimination circuitry for dual crystal scintillation detector - Compton reduction
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 122
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    Chromatic refraction and its relation to large-telescope guiding (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Chromatic refraction of long-focus telescope in astronomical photography
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 123
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    A propellant slosh measuring system for space vehicles (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Capacitance sensors for measuring liquid propellant sloshing in space vehicle fuel tanks
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 124
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    Ionization chamber (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Ionization chamber developed for Mariner IV - components, calibration, operation, and performance in Van Allen belts and solar flare
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 125
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    Leakage detection and measurement (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Hydrogen and oxygen sensors to detect explosive forming gases leaking from liquid propellant systems
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 126
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    High temperature liquid metal instrumentation at Atomics International for - /1/ The SNAP 10A flight system, /2/ Boiler conditioning experiments and mercury vapor quality measurement for Mercury Rankine Systems (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: High temperature liquid metal instrumentation for SNAP-10A flight system and mercury vapor quality
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 127
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    Measurement of gas temperature and the radiation compensating thermocouple (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Radiative heat transfer compensating device for gas temperature measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 128
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    Design and applications of beta-excited X-ray sources (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Beta-excited X-ray sources of strontium 90 promethium 147 for use in design of portable devices
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 129
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    A microgaussmeter (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Microgaussmeter for low level magnetic measurement
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 130
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    Guidelines for the development of a lunar sample preparation system (1965)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Sample preparation for X-ray diffractometer and guidelines for sample selection and handling of lunar rock specimens for analysis
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 131
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    Distortion measurement of antennas under space simulation conditions with high accuracy and high resolution by means of holography (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The use of laser holography for measuring the distortion of antennas under space simulation conditions is described. The subject is the so-called double exposure procedure which allows to measure the distortion in the order of 1 to 30/micrometers + or - 0.5 per hologramme of an area of 4 m diameter max. The method of holography takes into account the constraints of the space simulation facility. The test method, the test set up and the constraints by the space simulation facility are described. The results of the performed tests are presented and compared with the theoretical predictions. The test on the K-Band Antenna e.g., showed a distortion of approximately 140/micrometers + or - 5/micrometers measured during the cool down from -10 C to -120 C.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 13th Space Simulation Conf.; p 309-319
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  • 132
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    RIMSTAR: Rapid image scanning technology and archiving (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Conventional schemes for digitizing large volumes of photographic data are far too costly and time consuming to encourage the undertaking of the ambitious projects using traditional technology. There is a distinct need for fast digitizing systems such as could be derived from development of large format, optically multiplexed CCD systems designed to address these problems. The use of CCD chips for data handling and the capability of using polaroids in the optical path for reduced light scattering are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 419-427
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  • 133
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    Photographic surveys of the southern sky (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Parameters of the UK 1.2 meter Schmidt telescope are described. Plates taken with this instrument are in two categories, those for systematic sky surveys and those taken at the request of research users. A collaborative project with the European Southern Observatory was undertaken to obtain a two-color survey of the sky south of -20 deg declination to complement the Palomar survey. A near infrared survey of the Galactic Plane and the Megallanic Clouds is being done. The area south of -20 deg and the zone between 0 deg and -15 deg are also being surveyed. Pending a decision on survey parameters, all available A quality prism plates are being retained to form a basis for systematic survey. Nearly half the plates taken on a service basis for the UK astronomical community are to fulfill nonsurvey requests. Plates taken for surveys which are not of A grade quality are also made available for research purposes.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 379-385
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  • 134
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    The preparation of the measurements at the PDS at the Padova Observatory: Report on an experience with the development of an astronomical data base environment (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Some software facilities used mainly for information retrieval and analysis at the Padova-Asiago Observatory are discussed. These facilities help guest and resident astronomers to make easier the preparation of plate measurements. The problems connected with the creation, use and management of a data base in a scientific (astronomical) environment are reviewed on the basis of the experience gathered during the last three years. The development plan of the user session environment and its possible applications in a computer network are briefly sketched.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 361-369
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  • 135
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    Plans for a fast image recording system at ESO (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A 256 diode-array will be installed as detector on the ESO OPTRONICS S-3000 measuring machine in order to increase the acquisition rate. A high intensity LED will be used as light source in a pulse mode. The data will be stored on a random access mass storage device as density values for later education. The scanning time for a 30 cm x 30 cm plate with a step size of 10 micron will be less than 10 hours while the dynamic range of the data is expected to be 2.5 density units with an offset of at least 1 unit.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 317-328
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  • 136
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    The automated photographic measuring facility at Cambridge (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The design and performance of the automated photographic measuring facility at Cambridge is described. It consists of a precision laser scanning microdensitometer connected to a series of computers that process the data on-line. Plates up to 350 mm square can be measured. The microdensitometer samples the plate to 12 bit accuracy at a speed of 230,000 samples/second. The positional accuracy is better than a micron. Other features include platen rotation and automatic focus.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 277-288
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  • 137
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    Techniques of isophotometry (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The expected performance of the Minnesota automated dual-plate scanner (APS) is discussed with regard to photometry, position measurement accuracy, and ability to classify images. In addition, a fast algorithm for calculating image parameters is described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 267-276
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  • 138
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    The PDS-VAX intelligent plate scanning system of Trieste Astronomical Observatory (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: An intelligent subsystem for interfacing a PDS1010A digital microdensitometer to a DEC DR11W DMA 16 bit UNIBUS port in DEC VAX VMS environment was tested. The subsystem employs two MOTOROLA M68000 microprocessors with 128 KB data memory. The PDS primitives and the user defined high level scanning functions and preprocessing modules are loaded from the host computer into two 8 KB RAM memories in the microprocessors using a dedicated PDS control language. The subsystem is planned to employ a nonstandard photomultiplier electronics. Two design schemes were tested: (1) based on three amplifiers of gain 10 cascaded and multiplexed to a 12 bit AD converter, and (2) based on a single amplifier of gain 100 and two 14 bit AD converters.
    Keywords: ASTRONOMY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 175-187
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  • 139
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    The current status and future upgrade of the PDS at the Royal Greenwich Observatory (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Various aspects of the performance of the PDS 1010A microdensitometer are described. The primary points in an upgrade propsal for the unit are outlined. Photometric instabilities in the PDS are mentioned.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 129-134
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  • 140
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    Microdensitometer electronics modification (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Minor modifications of electronic components in the PDS 1010A microdensitometer are discussed. The operational requirements and performance limitations of the PDS are noted. Replacement of the photomultiplier and front-end analog circuitry significantly improved the photometric performance of the PDS. The improvement in density repeatability is marked, and the permissible density slew speed is greatly increased.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 121-128
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  • 141
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    Performance testing of the high altitude observatory PDS microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: High Altitude Observatory HAO microdensitometer undergoes monthly testing to assure its consistent performance. These tests check positional and photometric stability at the 10 micron aperture level. The HAO test procedure is designed to run without operator intervention following initial configuration of the microdensitometer for each subprocedure. Specialized test software is resident in the PDP 8. The operator selects the proper subprocedure by entering commands. Once computer control is established, it is not relinquished until the test is complete.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astron. Microdensitometry Conf.; p 19-34
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  • 142
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    Diagnosing a PDS microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A number of diagnostic tests are developed for the Photometric Data System PDS 2020G microdensitometer to monitor its performance and to isolate various electromechanical problems. A number of tests which help to diagnose problems with the photometer, positional accuracy and data collection are described. The tests include: (1) scanning a razor blade edge to study the response of the photometer and zero point losses in the coordinate system, (2) scanning a long straight line to evaluate the drunkness of the stage motions, (3) scanning photometric step wedge calibrations to study the response of the photometer, and (4) measurement of a series of high signal to noise plates of the same region of the sky to evaluate the overall performance of the microdensitometer. A variety of electronic tests to isolate electromechanical problems are also performed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 3-18
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  • 143
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    Ruled and holographic gratings experiment (A0138-5) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The behavior of ruled and holographic gratings with various coatings after extended exposure to the space environments was examined. The coatings and differentiating between the influences of vacuum and solar illumination were examined. In the past, several ruled and holographic gratings with various coatings were successfully flown on rocket experiments. Future utilizations of such gratings are considered for the Space Telescope and for various Spacelab projects under development. The techniques which is used to replicate gratings can also be used to obtain a wide range of lightweight optical components, including sophisticated aspherical, highly polished mirrors.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 163-164
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  • 144
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    Holographic data storage crystals for LDEF (A0044) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Electro-optic holographic recording systems were developed. The spaceworthiness of electro-optic crystals for use in ultrahigh capacity space data storage and retrieval systems are examined. The crystals for this experiment are included with the various electro-optical components of LDEF experiment. The effects of long-duration exposure on active optical system components is investigated. The concept of data storage in an optical-phase holographic memory is illustrated.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 152-153
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  • 145
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    Multiple-foil microabrasion package (A0023) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The specific scientific objectives of this experiment are to measure the spatial distribution, size, velocity, radiance, and composition of microparticles in near-Earth space. The technological objectives are to measure erosion rates resulting from microparticle impacts and to evaluate thin-foil meteor 'bumpers'. The combinations of sensitivity and reliability in this experiment will provide up to 1000 impacts per month for laboratory analysis and will extend current sensitivity limits by 5 orders of magnitude in mass.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 117-120
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  • 146
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    Reflections on the Space Telescope (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The significance of the Space Telescope for the advancement of astronomy and astrophysics is described. The current state of knowledge in astronomy and cosmology is summarized and unanswered questions in those fields discussed. The rapid evolution of modern astronomy and the need for systematic observations are stressed.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 121-134
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  • 147
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    Astrometric observations with the Space Telescope (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Astrometry with the Space Telescope (ST) is performed using one of the fine guidance sensors (FGS). The FGS, which is based on a pair of Koester's prism interferometers, one for each axis, is capable of measuring the position of one object relative to another with an accuracy of 0.002 arcseconds. Astrometric Data Reduction Software (ADRS) available to the astrometric user of ST is described. The kinds of problems the space telescope astrometry team plans to investigate using ST are discussed.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 114-120
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  • 148
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    The wide field/planetary camera (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A wide site of potential astronomical and solar system scientific studies using the wide field planetary camera on space telescope are described. The expected performance of the camera as it approaches final assembly and testing is also detailed.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 28-39
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  • 149
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    European astronomy and the Space Telescope: The Space Telescope European Coordinating Facility (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The role of the European Coordinating Facility is described. European participation in the Space Telescope Science Institute and the relation of Space Telescope to ground-based astronomy in Europe are discussed.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 16-19
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  • 150
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    Active cavity radiometer (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: The active cavity radiometer (ACR) experiment on the Spacelab 1 mission to measure the total solar irradiance is discussed. Short and long term variations in the total solar output of optical energy are studied. Solar total irradiance observation provides information on the solar cycle and other long term trends in solar output that are of climatological significance as well as short term solar physics phenomena. The interaction of solar radiation with the Earth's atmosphere, oceans, and land masses provides the primary driving forces for the formation of weather systems and the determination of climate. Astrophysical measurements determine the total energy flux. The principal role of the ACR observations support extended solar irradiance experiments on free flying satellites. Solar irradiance measurements are important in the establishment of the radiation scale at the solar total flux level in the international system of units (SI).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 4 p
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  • 151
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    Spectroscopy in X-ray astronomy (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: Detailed features in cosmic X-ray sources and their associated temporal variation over a wide energy range were studied. Excess emission and absorption at approximately 6 to 7 kiloelectron volts in the spectra of supernova remnants, binary X-ray sources, and clusters of galaxies were observed. A gas scintillation proportional counter (GSPC) will be used as the detector system. In the gas scintillator the principal limitation is due to the statistics of the initial ionization process only.
    Keywords: ASTRONOMY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 3 p
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  • 152
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    Very wide field camera (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: The study of galactic and faint extragalactic extended sources and peculiar ultraviolet objects by a very wide field of view camera, operated in the ultraviolet photometric and spectrometric modes is discussed. The photometric mode is direct photography through filters for observation of the following sources: (1) large scale distribution of ultraviolet radiation in the Milky Way; (2) diffusion of the galactic light above the galactic plane and in front of the large absorbing clouds; (3) the optical emission of the interstellar matter; (4) stars, and starlike objects with diameters less than 3 arc minutes. In the spectrometric mode (nebular spectrograph) the light from the center of the photometric field is concentrated on a slit covering 10 degrees by 10 arc minutes on the sky.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 3 p
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  • 153
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    Far ultraviolet astronomy using the FAUST telescope (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: The Far Ultraviolet Space Telescope (FAUST) a compact, wide field-of-view, far ultraviolet instrument designed for astronomical observations of extended and point sources is discussed. The design and application of the instrument are described. The prime objective is to observe faint astronomical sources with sensitivities higher than previously available. Scientific programs will include: (1) a search for ultraviolet stars which are predicted to exist at the stage of evolution prior to the final death of a star; (2) observations of galaxies and quasars; and (3) joint programs with other Spacelab 1 experiments. The secondary objective is to verify the suitability of the Spacelab as a platform for far ultraviolet astronomy: data will be provided on the ultraviolet background levels due to astronomical, terrestrial, and spacecraft generated sources; the levels of contaminants which affect ultraviolet instruments; and the capability of the Orbiter for stable pointing at celestial sources for useful periods of time.
    Keywords: ASTRONOMY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 3 p
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  • 154
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    Personal miniature electrophysiological tape recorder (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-05
    Description: The use of a personal miniature electrophysiological tape recorder to measure the physiological reactions of space flight personnel to space flight stress and weightlessness is described. The Oxford Instruments Medilog recorder, a battery-powered, four-channel cassette tape recorder with 24 hour endurance is carried on the person and will record EKG, EOG, EEG, and timing and event markers. The data will give information about heart rate and morphology changes, and document adaptation to zero gravity on the part of subjects who, unlike highly trained astronauts, are more representative of the normal population than were the subjects of previous space flight studies.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 2 p
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  • 155
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    Metric camera experiment (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: A test of the mapping capabilities of high resolution space photography taken at the resolution limit of image motion on large film format is planned. The metric camera system and its planned operation are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 4 p
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  • 156
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    Waves in the OH emissive layer (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: Photography and measurement of cloud-like structures of bright parallel bands observed in near infrared photography of the night sky is planned. The instrument is described and the purpose of the experiment summarized.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 2 p
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  • 157
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    Grille spectrometer (1981)
    In:  CASI
    Details
    Publication Date: 2006-06-04
    Description: High resolution infrared spectroscopic observations of the Earth's limb in the wavelength range characteristic of the vibrational-rotational lines of trace atmospheric constituents is planned. The instrument and its operation and the purpose of the experiments are summarized.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Spacelab Mission 1 Expt. Descriptions; 3 p
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  • 158
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    Space instruments (1967)
    In:  CASI
    Details
    Publication Date: 2006-04-10
    Description: Multidetector spectrometer for measuring surface temperature of Mars, and error analysis on application of stereophotogrammetry to extraterrestrial mapping
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 159
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    Hydrogen slush density instrumentation (1968)
    In:  CASI
    Details
    Publication Date: 2006-02-27
    Description: Hydrogen slush density instrumentation for field measurements of slush mass after calibration with reference system
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: RES. ACHIEVEMENTS REV., VOL. 11 1968; P 3-9
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  • 160
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    The use of the Mossbauer effect and laser interferometry to determine extremely small amplitudes for vibration measurements and calibration (1968)
    In:  CASI
    Details
    Publication Date: 2006-02-27
    Description: Using Mossbauer effect and laser interferometry to determine extremely small amplitudes for vibration measurements and calibration of scale models
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: RES. ACHIEVEMENTS REV., VOL. 11 1968; P 19-31
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  • 161
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    Automatic data recording and processing of wind-tunnel measurements (1966)
    In:  CASI
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    Publication Date: 2006-02-26
    Description: Automatic data recording and processing of wind tunnel measurements
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  • 162
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    Instruments and apparatus for pressure measurement (1966)
    In:  CASI
    Details
    Publication Date: 2006-02-26
    Description: Scientific instrumentation and apparatus for pressure measurement
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  • 163
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    The High Speed Photometer for the Space Telescope (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: An overview of the high speed photometer (HSP), its optics and detectors, its electronics, its mechanical structure, and some observational considerations are presented. The capabilities and limitations of the HSP are outlined.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 106-113
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  • 164
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    The Faint Object Camera (1982)
    In:  CASI
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    Publication Date: 2006-02-14
    Description: The Faint Object Camera fully exploits the spatial resolution capability of the Space Telescope on the very faintest detectable objects over a broad wavelength range. A full complement of filters, objective prisms and polarizers, a choice of coronograhic masks, and a variety of scan formats extend the scientific versatility of the direct imaging mode. In addition, the Faint Object Camera provides the unique facility of long-slit spectroscopy to Space Telescope observers.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 40-54
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  • 165
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    An automatic light scattering CCN counter (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The counter is a static thermal diffusion chamber which has been modified to include an optical system for the determination of droplet concentration by the measurement of scattered light. The determination of concentration is made by measurement of the peak scattered light signal from the cloud of growing droplets which is a function of both the droplet concentration and chamber supersaturation. Because the formation of the peak is related to the rate of growth of the droplets and sedimentation, both of which are determined by supersaturation, the system calibration can be uniquely determined by comparison with an absolute counter such as a static diffusion chamber with a photographic recording system.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 40-41
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  • 166
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    Cloud condensation nucleus counter by impactor sampling technique (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Unlike typical CCN counters, this device counts the numbers of water droplets condensed on aerosol particles sampled on a microcover glass at various different relative humidities. The relative humidities ranged from 75 percent to a calculated value of 110 percent. A schematic of the apparatus is shown. The individual CCN can be identified in an optical micrograph and scanning electron micrograph and may be inspected for their chemical composition later.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 35-36
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  • 167
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    The CCN counter of the IOPG of Puy de Dome: Main characterisics and results of measurements (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: In performing the data analysis of the measurements achieved during the Workshop with the device, a global approach was preferred rather than an individual analysis, in order to illustrate some main characteristics in the behavior of the device with respect to a mean behavior resulting from a general survey of all the equipments involved in each experiment. The device tends generally to overestimate the CCN concentrations measured near the high supersaturations and sometimes underestimates the concentrations close to 0.1% or 0.2% of supersaturation. Despite the fact that it belongs to a type of static diffusion chamber, it shows, however, similar spectra to those obtained with other types of chambers (continuous flow diffusion chamber and haze chamber).
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 17-19
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  • 168
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    Contribution to CCN Workshop report from University of Wyoming group (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The group's CCN counter is described. It is a static, horizontal, parallel plate thermal gradient diffusion chamber. Examples of the application of the CCN are presented and include the CCN spectra measured during the winter of 1978-79 near Elk Mountain, Wyoming. Comparisons of droplet concentrations derived from upwind CCN spectra are covered.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 11-13
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  • 169
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    Determination of the efficiency of a proportional counter for detecting X-rays (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A parallel beam of X-rays (approximately monoenergetic) passing through a rectangular slit and scattering from two flat mirrors comprise the X-ray test. The two mirrors are arranged in a periscope geometry so that the final reflected beam is parallel to the incident beam but displaced laterally by given amount. One of the detectors used to intercept the reflected X-rays is a one dimensional gas-filled proportional counter which is sensitive to the position (in 1 dimension) at which the X-rays are incident within its detecting "window". The total length of the anode wire of the proportional counter is 120 mm and this length can be divided electronically into a maximum of 1,024 parts. Hence, the output of an experimental run would be the number of incident X-rays that registered on each of the 1,024 channels. Each channel would represent an X-ray at a different spatial location and, hence, at a different scattering angle. In order to look at a wider range of scattering angles, the detector is placed on an optical table which can be rotated.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Alabama Univ. in Huntsville The 1981 NASA(ASEE Summer Fac. Fellowship Program; 6 p
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  • 170
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    Measurement of the aerosol size distribution with NRL's mobility analyzer (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The size distribution was measured in the size range between 0.0057 and 0.57 micrometer radius. A description of the instrumentation and data analysis is given, together with the measured size distributions calculated for 23 experiments.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 69-78
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  • 171
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    Modified MEE Industries static thermal gradient diffusion cloud chamber (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The experiments performed at the Workshop were undertaken to confirm the calculated sample volume, determine the usable range of supersaturation, and minimum detectable size. Comparison of absolute CCN concentrations with other state-of-the-art continuous flow diffusion chambers at supersaturations near 1 percent indicated that the volume used produced CCN concentrations well within the range of CCN concentrations determined at the workshop. This agreement is interpreted to mean the sample volume was correct. Direct measurements of the beam geometry done in the laboratory indicated a factor of 4-5 error. This error is apparently due to the larger apparent visible beam diameter versus the actual usable beam diameter given the droplet illumination, chamber optical geometry, microscope optics and film characteristics.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 44-45
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  • 172
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    Experiment S005 /S-5/, synoptic terrain photography (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Synoptic color photographs of North Africa, South America, China, Formosa, and oceanic areas during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30)
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  • 173
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    Experiment S006 /S-6/, synoptic weather photography (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Synoptic color photography of earth cloud cover during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N67-14150 05-30)
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  • 174
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    Multi-channel chopper system for a total ozone mapping spectrometer (1981)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: A multi-channel chopper system designed and built to stringent specifications is providing an excellent performance for a total ozone mapping spectrometer (TOMS). State of the art machining technology, suitable material selection, and a way to hold and position the slit plate resulted in the instrument's better than expected performance. A shutter method used for internal calibration allows compensation for the occurrence of an unlikely wavelength shift during testing, launch, or during the orbiting life of the instrument. The TOMS is part of a payload on Nimbus 7 launched on October 24, 1978.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center The 15th aerospace Mech. Symp.; p 63-75
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  • 175
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    Performance of the continuous flow diffusion chambers (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A brief comparative description is made of the chambers. Overall, comparisons for the various types of experiments - monodisperse, polydisperse and ambient aerosol - showed agreement among these chambers to within 15% in most cases. A careful analysis of the results indicated that a proper accounting of certain parameters would bring about much closer agreement among four of these instruments.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: The Third Intern. Cloud Condensation Nuclei Workshop; p 79-84
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  • 176
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    Description of the NRL isothermal haze chamber (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: In the IHC the critical supersaturation is inferred from the measurement of the size of particles which have grown to their equilibrium size at exactly 100 percent RH. The largest size channel corresponds to a critical supersaturation of 0.014 percent. The growth time required for particles of this size to reach their equilibrium size exceeds the 110 second residence time in the IHC. Since the supersaturation spectrum is always very steep in this region, the contribution of these larger particles which have not yet attained their equilibrium size to smaller size channels is negligible. However, failure of these particles to reach their equilibrium size could result in a significant lowering of the count in the size channel corresponding to the smaller critical supersaturation.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 42-43
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  • 177
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    Static diffusion cloud chambers (1981)
    In:  CASI
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    Publication Date: 2006-02-14
    Description: The chamber geometry and optical arrangement are described. The supersaturation range is given and consists of readings taken at five fixed points: 0.25%, 0.5%, 0.75%, 1.0%, and 1.25%. The detection system is described including light source, cameras, and photocell detectors. The temperature control and the calibration of the chamber are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 26-27
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  • 178
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    Description and discussion of the NRL TGDCC (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The NRL thermal gradient diffusion cloud chamber (TGDCC) consists of two plates 7.5 cm in diameter separated by 1.25 cm and covered with saturated filter paper. The cylindrical wall separating the plates is glass. The top plate is at room temperature and the bottom plate is cooled with a thermoelectric cooler. The temperature difference is measured with several sets of thermocouples. The CCN concentration was determined from the video recording. This procedure of averaging the maximum count obtained on several successive recordings at the same supersaturation results in concentrations which are somewhat higher than concentrations calculated from an average across the plateau.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 14-16
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  • 179
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    Experiment M410 /MSC-8/, color patch photography (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Extravehicular color target photography during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30) P 49-53
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  • 180
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    Experiment M408 /MSC-6/, beta spectrometer (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Beta spectrometer measurements on internal, and external radiation environments during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30) P 21-36
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  • 181
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    Experiment M405 /MSC-3/, triaxis magnetometer (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Triaxis magnetometer measurements on earth magnetic field during Gemini 10 mission
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30) P 9-19
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  • 182
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    Experiment S013 /S-13/, ultraviolet astronomical camera (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Spaceborne astronomical camera for ultraviolet photography of hot stars during Gemini flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30)
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  • 183
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    Experiment S001 /S-1/, zodiacal light photography (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Wide angle photography of airglow, zodiacal light, and Milky Way galaxy during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30)
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  • 184
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    Experiment M412 /MSC-12/, landmark contrast measurements (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Proposed visual contrast measurements during Gemini 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30) P 55-57
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  • 185
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    Experiment M409 /MSC-7/, bremsstrahlung spectrometer (1967)
    In:  CASI
    Details
    Publication Date: 2006-01-29
    Description: Bremsstrahlung flux-energy spectra inside Gemini 10 spacecraft during flight through south Atlantic magnetic anomaly region
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: MANNED SPACEFLIGHT EXPT. GEMINI 10 MISSION MAR. 1967 (SEE N68-14150 05-30) P 37-48
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  • 186
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    Comparing dry aerosol size measurements (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Two instruments were used to size dry aerosols for the CCN experiments: the Naval Research Laboratory (NRL) instrument which uses an electrical mobility analyzer to separate the aerosol size fractions and a diffusion chamber to grow and count the particles and the University of Wyoming (WYO) aerosol monitoring system. Measurements from these two systems were usually found to be in agreement during the CCN Workshop. Two examples are presented to compare aerosol size distribution measurements of the two instruments: experiment 8 (monodisperse NaCl) and experiment 27 (polydisperse AgI). Differential (dN/dR) and cumulative plots are shown for both instruments for experiment 8 and experiment 27; also shown are Aitken particle measurements for comparison.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 106-107
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  • 187
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    CCN comparisons of static diffusion chambers (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Nine CCN counters of the static diffusion (SDC) type were compared with one another and with continuous flow diffusion (CFD) chambers. The nine SDCs showed a considerable amount of variation, largely attributable to newness and/or lack of prior calibration of some units. The five more consistent instruments agreed quite well, to within at least 20 percent of the NRL mobility analyzer and to within 10 percent at 1 percent supersaturation. There was satisfactory agreement between the more reliable SDC and CFD chambers.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 57-63
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  • 188
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    Diffusion tube (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The diffusion tube was designed to operate below about 0.25 percent of water supersaturation. It is simply a long tube lined on the inside with a damp chamois cloth, and heated isothermally to a few degrees centigrade above the incoming air. The diffusion coefficient for water vapor is slightly larger than that for heat, making it possible to supersaturate the airflow. This is the same principle by which transient supersaturations may occur in parallel plate cloud chambers. Only the diffusion of vapor and heat from the walls into the moving air are considered.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 37-39
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  • 189
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    A description of the UK Meteorological Office CCN counter (1981)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The chamber is a thermal gradient diffusion type with the upper plate at room temperature and the lower plate thermoelectrically cooled. The light from a 25W projector bulb is focused in a beam of approximations 1x3 mm in the central part of the chamber. The light scattered by drops is viewed in the forward direction (40 deg) by a microscope and a sensitive photodetector. Experiments were performed to relate the peak output from the photocell with the maximum number of drops in the beam recorded photographically. The microscope is used to check the calibration at low concentrations of CCN. The results of the experiments and the performance of the counter are reported.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Desert Research Inst. The Third Intern. Cloud Condensation Nuclei Workshop; p 33-34
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  • 190
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    Lunar and planetary instruments (1967)
    In:  CASI
    Details
    Publication Date: 2006-04-10
    Description: Control circuitry designs for wet chemistry experiments in earth orbit or on planetary surface
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 191
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    Science data systems (1968)
    In:  CASI
    Details
    Publication Date: 2006-03-26
    Description: Digital generation of acceleration voltage for mass spectrometer, and development of low power, nondestructive readout, plated-wire memory
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: SPACE PROGRAMS SUM. NO. 37-51, VOL. 3 30 JUN. 1968; P 169-181
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  • 192
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    Space instruments (1968)
    In:  CASI
    Details
    Publication Date: 2006-03-26
    Description: Pulse height analyzer, imaging astronomical photometer, and secondary electron conduction vidicon for space application
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: SPACE PROGRAMS SUM. NO. 37-51, VOL. 3 30 JUN. 1968; P 152-167
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  • 193
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    Lunar and planetary instruments (1968)
    In:  CASI
    Details
    Publication Date: 2006-03-26
    Description: Atmospheric entry sampling system, and prototype mass spectrometer for planetary atmospheric analysis
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: SPACE PROGRAMS SUM. NO. 37-51, VOL. 3 30 JUN. 1968; P 143-151
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  • 194
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    Astronomical capabilities of the Faint Object Spectrograph on Space Telescope (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Examples of scientific observing programs planned with the Faint Object Spectrograph on Space Telescope are presented. An overview of the spectrograph design and operation is presented. The expected astronomical performance of the instrument is described in some detail.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 55-75
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  • 195
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    The Space Telescope Observatory (1982)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The history of the observatory is briefly described, as is the overall system design. The principal design features that are important to the scientific user are described. The present status of preparation for launch in the spring of 1985 is summarized.
    Keywords: ASTRONOMY
    Type: Space Telescope Science Inst. The Space Telescope Obs.; p 20-27
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  • 196
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    STEP flight experiments Large Deployable Reflector (LDR) telescope (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-03
    Description: Flight testing plans for a large deployable infrared reflector telescope to be tested on a space platform are discussed. Subsystem parts, subassemblies, and whole assemblies are discussed. Assurance of operational deployability, rigidization, alignment, and serviceability will be sought.
    Keywords: ASTRONOMY
    Type: NASA. Langley Research Center STEP Expt. Requirements; p 257-278
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  • 197
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    Computer simulation of the effects of transmission-averaging in microdensitometry (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: One of the principal advantages of electrography when compared to photography is the nearly linear relationship between source intensity versus resulting image density. This property allows for simplified and more accurate photometric calibration and permits a certain degree of extrapolation of the calibration to beyond the limits of the faintest photoelectric standard on an exposure. The desires to extract quantitative photometric information from electrographic (or photographic) negatives and to convert this information into a digital format for computer analysis or enhancement led to the widespread use of scanning microdensitometers to perform this A-to-D conversion. Therefore it is of vital importance to understand and, if practical, to avoid any nonlinearities which may be introduced during microdensitometry of electrographic emulsions.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 429-431
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  • 198
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    The role of the Automated Plate Measuring (APM) machine in developing a program to discover QSOs automatically (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The scanning of a direct plate with the automatic plate measuring machine which results in the automated selection and description of images is described. The selection of QSO candidates based on color-color diagrams constructed from the APM image data and the analysis of APM raster data for QSOs selected visually from objective prism plates are also discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 417-418
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  • 199
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    Next generation microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The fundamental limitations of microdensitometers are reviewed and the design of a high microdensitometer described. The system will digitize to 16 bits in transmission at a speed of 100 kHz using a laser beam moving over the emulsion. Other features are automatic platen rotation and autofocus. The cost will be of order $200,000.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 333-341
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  • 200
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    A new measuring machine in Paris (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A new photographic measuring machine is under construction at the Paris Observatory. The amount of transmitted light is measured by a linear array of 1024 photodiodes. Carriage control, data acquisition and on line processing are performed by microprocessors, a S.E.L. 32/27 computer, and an AP 120-B Array Processor. It is expected that a Schmidt telescope plate of size 360 mm square will be scanned in one hour with pixel size of ten microns.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 329-332
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