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  • 1
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    A Sample Return Container with Hermetic Seal (2000)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: A sample return container is being developed by Honeybee Robotics to receive samples from a derivative of the Champollion/ST4 Sample Acquisition and Transfer Mechanism or other samplers and then hermetically seal samples for a sample return mission. The container is enclosed in a phase change material (PCM) chamber to prevent phase change during return and re-entry to earth. This container is designed to operate passively with no motors and actuators. Using the sampler's featured drill tip for interfacing, transfer-ring and sealing samples, the container consumes no electrical power and therefore minimizes sample temperature change. The circular container houses a few isolated canisters, which will be sealed individually for samples acquired from different sites or depths. The drill based sampler indexes each canister to the sample transfer position, below the index interface for sample transfer. After sample transfer is completed, the sampler indexes a seal carrier, which lines up seals with the openings of the canisters. The sampler moves to the sealing interface and seals the sample canisters one by one. The sealing interface can be designed to work with C-seals, knife edge seals and cup seals. Again, the sampler provides all sealing actuation. This sample return container and co-engineered sample acquisition system are being developed by Honeybee Robotics in collaboration with the JPL Exploration Technology program.
    Keywords: Instrumentation and Photography
    Type: Concepts and Approaches for Mars Exploration; Part 1; 182-183; LPI-Contrib-1062-Pt-1
    Format: text
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  • 2
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    The Astro-E/XRS Calibration Program and Results (1999)
    In:  Other Sources
    Details
    Publication Date: 2011-08-23
    Description: XRS is the microcalorimeter X-ray detector aboard the US-Japanese ASTRO-E observatory, which is scheduled to be launched in early 2000. XRS is a high resolution spectrometer- with less than 9 eV resolution at 3 keV and better than 14 eV resolution over its bandpass ranging from about 0.3 keV to 15 keV. Here we present the results of our first calibration of the XRS instrument. We describe the methods used to extract detailed information about the detection efficiency and spectral redistribution of the instrument. We also present comparisons of simulations and real data to test our detector models.
    Keywords: Instrumentation and Photography
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  • 3
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    Close-packed Arrays of Transition-edge X-ray Microcalorimeters with High Spectral Resolution at 5.9 keV (2007)
    In:  CASI
    Details
    Publication Date: 2018-06-06
    Description: We present measurements of high fill-factor arrays of superconducting transition-edge x-ray microcalorimeters designed to provide rapid thermalization of the x-ray energy. We designed an x-ray absorber that is cantilevered over the sensitive part of the thermometer itself, making contact only at normal metal-features. With absorbers made of electroplated gold, we have demonstrated an energy resolution between 2.4 and 3.1 eV at 5.9 keV on 13 separate pixels. We have determined the thermal and electrical parameters of the devices throughout the superconducting transition, and, using these parameters, have modeled all aspects of the detector performance.
    Keywords: Instrumentation and Photography
    Format: application/pdf
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  • 4
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    Optical Characteristics of the Marshall Space Flight Center Solar Ultraviolet Magnetograph (2001)
    In:  Other Sources
    Details
    Publication Date: 2019-07-17
    Description: This paper will describe the scientific objectives of the MSFC SUMI project and the optical components that have been developed to meet those objectives. In order to test the scientific feasibility of measuring magnetic fields in the UV, a sounding rocket payload is being developed, This paper will describe the optical measurements that have been made on the SUMI telescope mirrors and polarization optics.
    Keywords: Instrumentation and Photography
    Type: UV/EUV and Visible Space Instrumentation for Astronomy and Solar Physics; Jul 29, 2001 - Aug 03, 2001; San Diego, CA; United States
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  • 5
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    Development of a Polarimeter for Magnetic Field Measurements in the Ultraviolet (2001)
    In:  Other Sources
    Details
    Publication Date: 2019-07-17
    Description: This paper will describe the polarizing optics that are being developed for an ultraviolet magnetograph (SUMI) which will be flown on a sounding rocket payload. With a limited observing program, the polarizing optics were optimized to make simultaneous observation at two magnetic lines CIV (155nm) and MgII (280). This paper will give a brief overview of the SUMI instrument, will describe the polarimeter that will be used in the sounding rocket program and will present some of the measurements that have been made on the (SUMI) polarization optics.
    Keywords: Instrumentation and Photography
    Type: Polarization Analysis and Measurement Analysis IV; Jul 29, 2001 - Aug 03, 2001; San Diego, CA; United States
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  • 6
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    The Marshall Space Flight Center Solar Utraviolet Magnetograph (2004)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: This paper will describe the objectives of the Marshall Space Flight Center (MSFC) Solar Ultraviolet Magnetograph Investigation (SUMI) and the optical components that have been developed to meet those objectives. In order to test the scientific feasibility of measuring magnetic fields in the W, a sounding rocket payload is being developed. This paper will discuss: (1) the scientific measurements that will be made by the SUMI sounding rocket program, (2) how the optics have been optimized for simultaneous measurements of two magnetic lines CIV (1550 Angstroms) and MgII (2800 Angstroms), and (3) the optical, reflectance, transmission and polarization measurements that have been made on the SUMI telescope mirrors and polarimeter.
    Keywords: Instrumentation and Photography
    Type: SPIE Astronomical Telescopes and Instrumentation 2004; Jun 21, 2004 - Jun 25, 2004; Glasgow, Scotland; United Kingdom
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  • 7
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    X-ray Spectrometer (2004)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: The X-ray Spectrometer (XRS) instrument is a revolutionary non-dispersive spectrometer that will form the basis for the Astro-E2 observatory to be launched in 2005. We have recently installed a flight spare X R S microcalorimeter spectrometer at the EBIT-I facility at LLNL replacing the XRS from the earlier Astro-E mission and providing twice the resolution. The X R S microcalorimeter is an x-ray detector that senses the heat deposited by the incident photon. It achieves a high energy resolution by operating at 0.06K and by carefully controlling the heat capacity and thermal conductance. The XRS/EBIT instrument has 32 pixels in a square geometry and achieves an energy resolution of 6 eV at 6 keV, with a bandpass from 0.1 to 12 keV (or more at higher operating temperature). The instrument allows detailed studies of the x-ray line emission of laboratory plasmas. The XRS/EBIT also provides an extensive calibration "library" for the Astro-E2 observatory.
    Keywords: Instrumentation and Photography
    Type: High Temperature Plasma Diagnostics 2004; Apr 18, 2004 - Apr 22, 2004; San Diego, CA; United States
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  • 8
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    NEA Multi-Chamber Sample Return Container with Hermetic Sealing (2000)
    In:  Other Sources
    Details
    Publication Date: 2019-07-17
    Description: A sample return container is being developed by Honeybee Robotics to receive samples from a derivative of the Champollion/ST4 Sample Acquisition and Transfer Mechanism or other samplers such as the 'Touch and Go' Surface Sampler (TGSS), and then hermetically seal the samples for a sample return mission. The container is enclosed in a phase change material (PCM) chamber to prevent phase change during return and re-entry to earth. This container is designed to operate passively with no motors and actuators. Using the rotation axis of the TGSS sampler for interfacing, transferring and sealing samples, the container consumes no electrical power and therefore minimizes sample temperature change. The circular container houses multiple isolated canisters, which will be sealed individually for samples acquired from different sites or depths. The TGSS based sampler indexes each canister to the sample transfer position, below the index interface for sample transfer. After sample transfer is completed, the sampler indexes a seal carrier, which lines up seals with the openings of the canisters. The sampler moves to the sealing interface and seals the sample canisters one by one. The sealing interface can be designed to work with C-seals, knife edge seals and cup seals. This sample return container is being developed by Honeybee Robotics in collaboration with the JPL Exploration Technology program. A breadboard system of the sample return container has been recently completed and tested. Additional information is contained in the original extended abstract.
    Keywords: Instrumentation and Photography
    Type: Near-Earth Asteroid Sample Return Workshop; 38-39; LPI-Contrib-1073
    Format: text
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  • 9
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    Implications of Weak Link Effects on Thermal Characteristics of Transition-Edge Sensors (2012)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Weak link behavior in transition-edge sensor (TES) microcalorimeters creates the need for a more careful characterization of a device's thermal characteristics through its transition. This is particularly true for small TESs where a small change in the bias current results in large changes in effective transition temperature. To correctly interpret measurements, especially complex impedance, it is crucial to know the temperature-dependent thermal conductance, G(T), and heat capacity, C(T), at each point through the transition. We present data illustrating these effects and discuss how we overcome the challenges that are present in accurately determining G and T from I-V curves. We also show how these weak link effects vary wi.th TES size. Additionally, we use this improVed understanding of G(T) to determine that, for these TES microcalorimeters. Kaptiza boundary resistance dominates the G of devices with absorbers while the electron-phonon coupling also needs to be considered when determining G for devices without absorbers
    Keywords: Instrumentation and Photography
    Type: GSFC.JA.7030.2012 , Journal of Low Temperature Physics; 167; 4-Mar; 121-128
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  • 10
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    Solar Wind Charge Exchange and Local Hot Bubble X-Ray Emission with the DXL Sounding Rocket Experiment (2012)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The Diffuse X-ray emission from the Local Galaxy (DXL) sounding rocket is a NASA approved mission with a scheduled first launch in December 2012. Its goal is to identify and separate the X-ray emission of the SWCX from that of the Local Hot Bubble (LHB) to improve our understanding of both. To separate the SWCX contribution from the LHB. DXL will use the SWCX signature due to the helium focusing cone at 1=185 deg, b=-18 deg, DXL uses large area propostionai counters, with an area of 1.000 sq cm and grasp of about 10 sq cm sr both in the 1/4 and 3/4 keY bands. Thanks to the large grasp, DXL will achieve in a 5 minule flight what cannot be achieved by current and future X-ray satellites.
    Keywords: Instrumentation and Photography
    Type: GSFC.JA.01144.2012 , Astronomical Notes; 333; 4; 383-387
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