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1 mA Stable Energy Recovery Beam Operation with Small Beam Emittance
https://repo.qst.go.jp/records/77731
https://repo.qst.go.jp/records/77731333045dd-9514-4b98-b087-caef98fa7a15
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-05-07 | |||||
| タイトル | ||||||
| タイトル | 1 mA Stable Energy Recovery Beam Operation with Small Beam Emittance | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Obina, Takashi
× Obina, Takashi× Arakawa, Dai× Egi, Masato× Furuya, Takaaki× Haga, Kaiichi× Harada, Kentaro× Honda, Tohru× Honda, Yosuke× Honma, Teruya× Kako, Eiji× Kato, Ryukou× Kawata, Hiroshi× Kobayashi, Yukinori× Kojima, Yuuji× Konomi, Taro× Matsumura, Hiroshi× Miura, Takako× Miyajima, Tsukasa× Nagahashi, Shinya× Nakai, Hirotaka× Nakamura, Norio× Nakanishi, Kota× Nigorikawa, Kazuyuki× Nogami, Takashi× Qiu, Feng× Sagehashi, Hidenori× Sakai, Hiroshi× Sakanaka, Shogo× Shimada, Miho× Tadano, Mikito× Takahashi, Takeshi× Takai, Ryota× Alexandrovna Tanaka, Olga× Tanimoto, Yasunori× Uchiyama, Takashi× Umemori, Kensei× Yamamoto, Masahiro× 西森, 信行× 羽島, 良一× 永井, 良治× 沢村, 勝× Hotei, Takahiro× Nishimori, Nobuyuki× Hajima, Ryoichi× Nagai, Ryoji× Sawamura, Masaru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A compact energy-recovery linac (cERL) have been operating since 2013 at KEK to develop critical components for ERL facility. Details of design, construction and the result of initial commissioning are already reported*. This paper will describe the details of further improvements and researches to achieve higher averaged beam current of 1 mA with continuous-wave (CW) beam pattern. At first, to keep the small beam emittance produced by 500 kV DC-photocathode gun, tuning of low-energy beam transport is essential. Also, we found some components degrades the beam quality, i.e., a non-metallic mirror which disturbed the beam orbit. Other important aspects are the measurement and mitigation of the beam losses. Combination of beam collimator and tuning of the beam optics can improve the beam halo enough to operate with 1 mA stably. The cERL has been operated with beam energy at 20 MeV or 17.5 MeV and with beam rep-rate of 1300 MHz or 162.5 MHz depending on the purpose of experiments. In each operation, the efficiency of the energy recovery was confirmed to be better than 99.9 %. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 10th International Particle Accelerator Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2019-05-14 | |||||
| 日付タイプ | Issued | |||||
