Determination of Detection Efficiencies of CsI Photodiode and Microchannel Plate Detectors
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Authors
Jessen, Scott W.
Issue Date
1989
Type
Thesis
Language
en_US
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Abstract
We have measured the detection efficiencies of a CsI photodiode (Si02
windowed) and a microchannel plate detector (MCP) with an opaque CsI
photocathode at 1850 A. Also, a detection efficiency curve was measured
for a windowless CsI photodiode in the 1000 - 1700 A wavelength range.
The efficiency for the MCP was measured in the pulse counting mode.
Efficiencies for the windowed CsI photodiode and MCP at 1850 A were 9.04%
and 19.1% respectively. The efficiency curve for the windowless CsI
photodiode was comparable to the typical curve found for CsI-coated
photocathodes. Finally, the pulse height distribution was measured for
the MCP configuration and yielded good full width at half maximum (FWHM)
values of 62.2% at 4.8 kV and 97.3% at 4.6 kV.
Description
iv, 56 p.
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