Experimental Astronomy

, Volume 14, Issue 1, pp 57–60

Characterization of the Si:As Blocked Impurity Band (BIB) Detector in Keck's Long Wavelength Spectrometer (LWS)

  • Randall D. Campbell

DOI: 10.1023/A:1026102708807

Cite this article as:
Campbell, R.D. Experimental Astronomy (2002) 14: 57. doi:10.1023/A:1026102708807


Keck's Long Wavelength Spectrometer (LWS), is the facility instrument used for imaging and spectroscopy in the wavelength range of 3–28 μm at the Keck Observatory. LWS uses an 128 × 128 Si:As blocked impurity band (BIB) array manufactured by the Boeing Corporation. This paper discusses the method used for optimizing the detector's operating parameters at a temperature of 8.5 K and bias voltage of 1.2 V. A process for characterizing detective quantum efficiency of BIB detectors is also presented.

Long Wavelength Spectrometer (LWS) Blocked Impurity Band (BIB) detectors quantum yield gain dispersion detective quantum efficiency 

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Randall D. Campbell
    • 1
  1. 1.W. M. Keck ObservatoryUSA

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