| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-05-02 |
| タイトル |
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タイトル |
Pattern Excitation Tests of the Short Model Superconducting Magnet for a Compact Heavy-ion Synchrotron |
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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 |
Takayama Shigeki
Amano Saki
Orikasa Tomofumi
Nakanishi Kosuke
Hirata Yutaka
Fujimoto Tetsuya
Mizushima Kota
Yang Ye
Matsuba Shunya
Noda Etsuo
Urata Masami
Iwata Yoshiyuki
Shirai Toshiyuki
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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 |
A project to develop a compact heavy-ion radiotherapy system is underway at the National Institutes for Quantum Science and Technology (QST). One of the aims of this project is to downsize the synchrotron by applying superconducting technology, and we have been developing a superconducting magnet for this
system in collaboration with QST. This superconducting magnet was designed to generate a dipole field of 3.5 T at a rapid cycle of more than 0.64 T/s by applying the conduction cooling method and using 4K Gifford-McMahon (GM) cryocoolers. Such high-speed excitation generates large AC loss, and this heat generation is one of the major issues in this development. Therefore, we fabricated a short straight model magnet and carried out pattern excitation tests to verify the thermal design. This model magnet has the same cross section as the full scale magnet, but its length is shortened by 1/3. In the pattern excitation test repeated 50 times, the maximum coil temperature was calculated to be 4.03 K and measured to be 3.82 K. The quench occurred at 5.9 K, which is near the temperature of 5.76 K where the load factor is expected to be 100% in overload
test. This pattern excitation test results shows that the coil performance was obtained as expected. Also, the consistency between the calculations and the test results confirmed that the conduction cooling method using 4K GM cryocoolers is applicable to the full scale superconducting magnet for the synchrotron. In this paper, the excitation test results are reported. |
| 書誌情報 |
IEEE Transactions on Applied Superconductivity
巻 33,
号 5,
p. 4401105,
発行日 2023-03
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| 出版者 |
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出版者 |
IEEE |
| 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 |
1051-8223 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1109/TASC.2023.3248534 |
