| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-07-31 |
| タイトル |
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タイトル |
Progress in the development of radiation detectors for fusion neutron source A-FNS |
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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 |
Kunihiro Ogawa
Longyong Liao
Takashi Kobuchi
Saori Kurita
Mitsutaka Isobe
Ochiai Kentaro
Kumagai Kohki
Saerom Kwon
Kondo Keitaro
Siriyaporn Sangaroon
Eiji Takada
Misako Miwa
Sho Toyama
Shigeo Matsuyama
Sachie Kusaka
Shingo Tamaki
Isao Murata
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The time evaluation of the intensity and spectrum of a neutron source provides the fundamental data for neutron irradiation experiments. Therefore, the study and development for measurement of radiation flux and spectrum with high accuracy is necessary. The development of fast neutron detectors has been advanced through a collaborative research undertaking between the National Institute for Fusion Science and the National Institutes for Quantum Science and Technology for Fusion Neutron Source, A-FNS, which is a high-energy and highintensity neutron source based on the deuterium-lithium stripping reaction with its energy spectrum extending up to 55 MeV. d-D and d-T neutron spectrometers based on scintillation and diamond detectors were developed in the accelerator-based d-D and d-T neutron sources. The initial radiation measurements using the developed detectors were conducted in the Linear International Fusion Materials Irradiation Facility Prototype Accelerator (LIPAc). The d-D neutron spectrum and source emission rate were measured by a high-pressure 3He proportional counter and stilbene scintillation detector, respectively. Accordingly, the fast-neutron spectrum from the LIPAc beam dump was measured using an EJ-301 scintillation detector. Furthermore, an initial test of a single-crystal chemical-vapor-deposition diamond detector and the gamma ray spectroscopy using large-volume LaBr3:Ce scintillation detector were also conducted. The time evolution of the gamma ray pulse count rate was
consistent with the beam injection pattern, i.e., 3 ms injection every 100 ms. The demonstration of the performance of the developed detectors at the current stage of LIPAc provided the basic experimental evidence necessary for designing a radiation monitor system for A-FNS. |
| 書誌情報 |
Fusion Engineering and Design
巻 218,
p. 115214,
発行日 2025-05
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.fusengdes.2025.115214 |
