| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-05-25 |
| タイトル |
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タイトル |
Design and performance of a compact 3-GeV injector for the low-emittance storage ring in NanoTerasu |
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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 |
Kan Koichi
Asaka Takao
Ueshima Kouta
Obara Shuhei
Hosaka Yuji
Nishimori Nobuyuki
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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 3-GeV linear accelerator was constructed as a full-energy injector, enabling high-efficiency and high-stability injection into NanoTerasu, a storage-ring light source with a multi-bend achromat lattice. The linear accelerator consists of a 40-MeV pre-injector and a C-band accelerator with a total length of 110 m. We developed a beam-based phase tuning method for RF cavities in the pre-injector. After this tuning, Twiss parameters and normalized emittance of less than 10 mm·mrad measured at the pre-injector exit are consistent with a beam tracking simulation. The 3-GeV linear accelerator has greatly contributed to stable top-up operation, since operation began in 2024. The energy stability of the injected beam from the linear accelerator was achieved as 0.04% (rms) during 11 days of X-ray user experiment with top-up mode. The stored beam current in the storage ring is maintained at 200 mA by top-up operation. The variation of the stored beam current is kept within 0.04% (rms) by the stable injected beam. |
| 書誌情報 |
Nuclear Inst. and Methods in Physics Research, A
巻 1090,
p. 171670-171670,
発行日 2026-05
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| 出版者 |
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出版者 |
Elsevier BV |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.nima.2026.171670 |
