| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10716078 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 10 Pages |
Abstract
The gamma-ray spectrometer (GRS) of Japanese lunar polar orbiter SELENE uses a Ge detector for the first time on a lunar mission. This spectrometer will observe lunar gamma rays for 1Â year or more to determine chemical composition over the entire lunar surface. For cooling the Ge detector, we adopted a Stirling cryocooler. The SELENE GRS flight model was completed and an energy resolution of 3.0Â keV (FWHM) at 1.33Â MeV was achieved. This paper describes the details of the detector-cryogenic system and its performance.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Masanori Kobayashi, Nobuyuki Hasebe, Takuji Hiramoto, Takashi Miyachi, Satoshi Murasawa, Hiroyuki Okada, Osamu Okudaira, Naoyuki Yamashita, Alexey A. Berezhnoy, Eido Shibamura, Takeshi Takashima, Claude d'Uston, Katsuhiro Narasaki, Keisuke Tsurumi,