| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-01-08 |
| タイトル |
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|
タイトル |
Development of a time-gated epithermal neutron spectrometer for resonance absorption measurements driven by a high-intensity laser |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Zechen Lan
Yasunobu Arikawa
Yuki Abe
S. Reza Mirfayzi
Alessio Morace
Takehito Hayakawa
Tianyun Wei
Akifumi Yogo
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
The advance of laser-driven neutron sources (LDNSs) has enabled neutron resonance spectroscopy to be performed with a single shot of a laser. In this study, we describe a detection system using epithermal (?eV) neutrons that was designed for neutron spectroscopy. A time-gated photomultiplier tube (PMT) with a high cut-off ratio was introduced for epithermal neutron detection in a high-power laser experiment at the Institute of Laser Engineering, Osaka University. We successfully reduced the PMT response to the intense hard X-ray generated as a result of the interaction between laser light and the target material. A time-gated circuit was designed to turn off the response of the PMT during the laser pulse and resume recording the signal when neutrons arrive. The time-gated PMT was coupled with a 6Li glass scintillator, serving as a time-of-flight (TOF) detector to measure the neutron resonance absorptions of 182W and 109Ag in a laser-driven epithermal neutron generation experiment. The neutron resonance peaks at 4.15 eV of 182W and 5.19 eV of 109Ag were detected after a single pulse of laser at a distance of 1.8 m. |
| 書誌情報 |
Quantum beam science
巻 8,
号 9,
p. qubs8010009,
発行日 2024-02
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| 出版者 |
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出版者 |
MDPI |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2412-382X |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.3390/qubs8010009 |
