Characterization of the Si:As Blocked Impurity Band (BIB) Detector in Keck's Long Wavelength Spectrometer (LWS) |
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Authors: | Randall D Campbell |
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Institution: | (1) W. M. Keck Observatory, USA |
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Abstract: | 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.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Long Wavelength Spectrometer (LWS) Blocked Impurity Band (BIB) detectors quantum yield gain dispersion detective quantum efficiency |
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