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arXiv · hep-ex/9504010

A liquid-helium cooled large-area silicon PIN photodiode x-ray detector

Yoshizumi Inoue·Shigetaka Moriyama·Hideyuki Hara·Makoto Minowa·Fumio Shimokoshi
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Abstract

An x-ray detector using a liquid-helium cooled large-area silicon PIN photodiode has been developed along with a tailor-made charge sensitive preamplifier whose first-stage JFET has been cooled. The operating temperature of the JFET has been varied separately and optimized. The x- and $γ$-ray energy spectra for an \nuc{241}{Am} source have been measured with the photodiode operated at 13 K. An energy resolution of 1.60 keV (FWHM) has been obtained for 60-keV $γ$ rays and 1.30 keV (FWHM) for the pulser. The energy threshold could be set as low as 3 keV. It has been shown that a silicon PIN photodiode serves as a low-cost excellent x-ray detector which covers large area at 13 K.

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Yoshizumi Inoue, Shigetaka Moriyama, Hideyuki Hara, Makoto Minowa, Fumio Shimokoshi. 1995-04-27. A liquid-helium cooled large-area silicon PIN photodiode x-ray detector. https://doi.org/10.1016/0168-9002(95)00872-1

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