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Irradiation effects of a 10 MeV neutron beam on a Nd-Fe-B permanent magnet
https://repo.qst.go.jp/records/45700
https://repo.qst.go.jp/records/4570007e17543-4805-4533-b56d-38e55aef65b8
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-12-25 | |||||
| タイトル | ||||||
| タイトル | Irradiation effects of a 10 MeV neutron beam on a Nd-Fe-B permanent magnet | |||||
| 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 |
Miyahara, Nobuyuki
× Miyahara, Nobuyuki× Honma, Toshihiro× Fujisawa, Takashi× 宮原 信幸× 本間 壽廣× 藤澤 高志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An irradiation effect of a Nd-Fe-B permanent magnet by fast neutrons having a central energy of 10 MeV was investigated experimentally. The sample magnet (NEOMAX-39SH) had a rectangular shape of 25 mm 25 mm and 5 mm thick. The measured magnetic flux density decreases at the center of the sample magnets were 0.6%, 6.9%, 25.2% and 47.3% after continuous irradiation of 1.1 kGy, 3.7 kGy, 5.6 kGy and 7.4 kGy, respectively. On the other hand, the decrease due to non-continuous irradiation, in which the magnet was irradiated at 3.7 kGy firstly, and then irradiated again at 3.7 kGy 9 months later, was 14% smaller than that of continuous irradiation, even for the same total dose. The temperature coefficient of the magnetization did not change with the neutron irradiation. Some kinds of radioactive materials, such as 147Nd, 151Pm, and 54Mn, were detected in the magnet after irradiation. | |||||
| 書誌情報 |
Nuclear Instruments & Methods in Physics Research Section B 巻 268, 号 1, p. 57-61, 発行日 2010-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0168-583X | |||||
