抄録
The elemental composition and its distribution on planetary surface provide important constraints on the origin and evolution of the planetary body. The nuclear spectrometer consisting of a neutron spectrometer and a gamma-ray spectrometer obtains elemental compositions by remote sensing. Especially, the neutron spectrometer is able to determine the hydrogen concentration, a piece of information that plays an important role in thermal history of the planets. In this work, numerical and experimental studies on the neutron spectrometer for micro-satellite application were conducted. It is found that background count rate of neutron produced from micro-satellite is very small, which enables to obtain successful results in short time observation. The neutron spectrometer combining a lithium-6 glass scintillator with a boron loaded plastic scintillator was used to be able to detect neutrons in different energy ranges. It was experimentally confirmed that the neutron signals from these scintillators were successfully discriminated by the difference of scintillation decay time between two detectors. The measurement of neutron count rates of two scintillators is found to determine hydrogen concentration on the planetary surfaces in the future missions.
本文言語 | English |
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ホスト出版物のタイトル | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX |
出版社 | SPIE |
巻 | 10392 |
ISBN(電子版) | 9781510612419 |
DOI | |
出版ステータス | Published - 2017 1月 1 |
イベント | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX 2017 - San Diego, United States 継続期間: 2017 8月 7 → 2017 8月 9 |
Other
Other | Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIX 2017 |
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国/地域 | United States |
City | San Diego |
Period | 17/8/7 → 17/8/9 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 凝縮系物理学
- コンピュータ サイエンスの応用
- 応用数学
- 電子工学および電気工学