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Measurement of cosmic-neutron energy spectrum at the summit of Mt. Fuji
https://repo.qst.go.jp/records/45955
https://repo.qst.go.jp/records/45955a892f63a-17fe-4002-a6d7-6ba558ada49b
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-12-04 | |||||
| タイトル | ||||||
| タイトル | Measurement of cosmic-neutron energy spectrum at the summit of Mt. Fuji | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Yajima, Kazuaki
× Yajima, Kazuaki× Yasuda, Hiroshi× 矢島 千秋× 保田 浩志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We measured a cosmic-neutron energy spectrum for the energy range from 9 to 160 MeV at the summit of Mt. Fuji at 3776 m above sea level, using a phoswich-type scintillation detector to study high altitude cosmic-ray exposure. Neutron signals from phoswich-type scintillation detector were separated from other particle signals by means of a pulse shape discrimination method, and unfolded with the FERDO-U code. The measured unfolded cosmic-neutron energy spectrum showed two peaks, one at around 20 MeV and the other at 110 MeV. The 110 MeV peak had good energy resolution, and the peak energy and the spectral neutron fluence rate around the peak were in agreement with those of our calculation. On the contrary, the appearance of a 20 MeV peak did not agree with the previous cosmic-neutron spectrum measurements and calculations. We believe that it is due to the overlap of signals of different particles caused by insufficient particle identification. | |||||
| 書誌情報 |
Radiation Measurements 巻 45, 号 10, p. 1597-1599, 発行日 2010-12 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1350-4487 | |||||
