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  • Instrument Function  (1)
  • Spacecraft Instrumentation and Astrionics  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The MPE/UCB far-infrared imaging Fabry-Perot interferometer (FIFI) (1991)
    Springer
    International journal of infrared and millimeter waves 12 (1991), S. 859-884 
    Details
    ISSN: 1572-9559
    Keywords: Spectrometer ; Infrared Astronomy ; Infrared Techniques ; Detector Array ; Cryogenic Electronics ; Fabry-Perot ; Cryogenic ; Imaging ; Instrument Function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract FIFI is an imaging spectrometer with two or three Fabry-Perot interferometers (FPI) in series for airborne astronomical observations in the far-infrared range (λ=40...200μm). It employs 5×5 arrays of photoconducting detectors and offers spectral resolutions as small as 2km/s. Resolution and bandwidth can be set over a wide range to match a variety of astronomical sources. Cryogenic optics minimizes thermal background radiation and provides for in-flight step tunable spatial resolution. At 158 μm wavelength the background-limited NEP is 3 × 10-15W/ℚHz at 40 km/s resolution and with two FPI's; with three FPI's the expected NEP is ≤10-15W√Hz at 5 km/s resolution. The frequency-chopping mode of the high-resolution Fabry-Perot allows for line detection in extended objects. Absolute internal flux calibration ensures adequate “flat fielding” of the array elements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01009647
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    Paper (German National Licenses)
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  • 2
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    The Constellation-X Focal Plane Microcalorimeter Array: An NTD-Germanium Solution (2001)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The hallmarks of Neutron Transmutation Doped (NTD) germanium cryogenic thermistors include high reliability, reproducibility, and long term stability of bulk carrier transport properties. Using micro-machined NTD Ge thermistors with integral 'flying' leads, we can now fabricate two-dimensional arrays that are built up from a series of stacked linear arrays. We believe that this modular approach of building, assembling, and perhaps replacing individual modules of detectors is essential to the successful fabrication and testing of large multi-element instruments. Details of construction are presented.
    Keywords: Spacecraft Instrumentation and Astrionics
    Type: Ninth International Workshop on Low Temperature Detectors; Jul 22, 2001 - Jul 27, 2001; Madison, WI; United States
    Format: text
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    NASA TECHNICAL REPORTS
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