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Development of superconducting spoke cavities for laser Compton scattered X-ray sources

レーザーコンプトン散乱X線光源のための超伝導スポーク空洞の開発

羽島 良一; 沢村 勝; 久保 毅幸*; 佐伯 学行*; Cenni, E.*; 岩下 芳久*; 頓宮 拓*

Hajima, Ryoichi; Sawamura, Masaru; Kubo, Takayuki*; Saeki, Takayuki*; Cenni, E.*; Iwashita, Yoshihisa*; Tongu, Hiromu*

レーザーコンプトン散乱X線源のための超伝導スポーク空洞の研究開発が、文部科学省の研究プログラムとして採択された。2013年度から5年間のプログラムでは、325MHz超伝導スポーク空洞の設計、製作、性能測定を実施する予定である。本論文では、電磁場解析、応力解析の結果を反映した空洞形状の最適化、プレス加工のための金型設計などについて報告する。

A 5-year research program on the development of superconducting spoke cavities for electron accelerators has been funded by MEXT, Japan since 2013. The purpose of our program is establishing design and fabrication processes of superconducting spoke cavity optimized for compact X-ray sources based on laser Compton scattering. The spoke cavity is expected to realize a compact industrial-use X-ray source with a reasonable cost and easy operation. We have chosen a cavity frequency at 325 MHz due to possible operation at 4 K and carried out cavity shape optimization in terms of electromagnetic and mechanical properties. Production of press-forming dies is also in progress. In this paper, we present overview and up-to-date status of the research program.

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