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  • 1
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    Application Explorer Mission 2 (AEM 2), Stratospheric Aerosol and Gas Experiment (SAGE) (1980)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Upper Atmosphere Res. Program; p 234-235
    Format: text
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  • 2
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    Laboratory characterization of direct readout Si:Sb and Si:Ga infrared detector arrays (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Highlights of recent results obtained at Ames Research Center in performance evaluations of infrared detector arrays are presented. Antimony- and gallium-doped silicon direct readout 58x62 element hybrid devices from Ames' ongoing detector technology development program are described. The observed characteristics meet most of the performance goals specified by the Space Infrared Telescope Facility (SIRTF) instrument teams and compare favorably with the best performance reported for discrete non-integrating extrinsic silicon detectors. Initial results of radiation environment testing are reported, and non-ideal behavior demonstrated by these test devices is discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Proceedings of the Third Infrared Detector Technology Workshop; p 403-412
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  • 3
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    Digital multishaker modal testing (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A review of several modal testing techniques is made, along with brief discussions of their advantages and limitations. A new technique is presented which overcomes many of the previous limitations. Several simulated experiments are included to verify the validity and accuracy of the new method. Conclusions are drawn from the simulation studies and recommendations for further work are presented. The complete computer code configured for the simulation study is presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-170951 , NAS 1.26:170951 , CAR-83-1
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  • 4
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    Holographic Recording Materials Development (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Organic photorefractive materials were evaluated for application in a reversible holographic memory system. Representative indigo and thioindigo derivatives and several stilbene derivatives were studied as well as 15, 16-dialkyldihydropyrene derivatives the following goals were achieved: (1) the successful writing of phase holograms in a thioindigo/polymer gel system, (2) the successful writing and erasing of phase holograms in a variety of indigo/polymer gel and indigo/solid polymer systems, and (3) the identification of indigoid dyes and 15, 16-dialkyldihydropyrene derivatives as materials potentially suitable for utilization in an operational system. Photochemical studies of the stilbene, indigo, thioindigo, and dialkyldihydropyrene derivatives in solution and in a variety of polymer matrix materials were conducted with the goal of optimizing the photorefractive behavior of the chemical system as a whole. The spectroscopic properties required of optimal photorefractive materials were identified, and it was shown that both the indigoid dyes and the dialkyldihydropyrenes closely match the required properties.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-144991
    Format: application/pdf
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  • 5
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    Proceedings of the Third Infrared Detector Technology Workshop (1989)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This volume consists of 37 papers which summarize results presented at the Third Infrared Detector Technology Workshop, held February 7-9, 1989, at Ames Research Center. The workshop focused on infrared (IR) detector, detector array, and cryogenic electronic technologies relevant to low-background space astronomy. Papers on discrete IR detectors, cryogenic readouts, extrinsic and intrinsic IR arrays, and recent results from ground-based observations with integrated arrays were given. Recent developments in the second-generation Hubble Space Telescope (HST) infrared spectrometer and in detectors and arrays for the European Space Agency's Infrared Space Observatory (ISO) are also included, as are status reports on the Space Infrared Telescope Facility (SIRTF) and the Stratospheric Observatory for Infrared Astronomy (SOFIA) projects.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-102209 , A-89200 , NAS 1.15:102209 , Feb 07, 1989 - Feb 09, 1989; Moffett Field, CA; United States
    Format: application/pdf
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  • 6
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    Absolute radiometers for use in ballistic- range and shock-tube experiments (1969)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Design, calibration, and use of radiometers to measure spectral emission in ballistic range and shock tube experiments
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TN-D-5360
    Format: application/pdf
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  • 7
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    Multishaker modal testing (1983)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Procedures for improving the modal modeling of structures using test data and to determine appropriate analytical models based on substructure experimental data were explored. Two related research topics were considered in modal modeling: using several independently acquired columns of frequency response data, and modal modeling using simultaneous multi-point excitation. In component mode synthesis modeling, the emphasis is on determining the best way to employ complex modes and residuals.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-170952 , NAS 1.26:170952 , CAR-83-2
    Format: application/pdf
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