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Oprational experience of a 500 kV photoemission gun
https://repo.qst.go.jp/records/76558
https://repo.qst.go.jp/records/7655882b2542c-d713-45a7-8a07-f0f0581d39fd
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-08-25 | |||||
| タイトル | ||||||
| タイトル | Oprational experience of a 500 kV photoemission gun | |||||
| 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 |
Nishimori, Nobuyuki
× Nishimori, Nobuyuki× Nagai, Ryoji× Hajima, Ryoichi× Yamamoto, Masahiro× Honda, Yosuke× Miyajima, Tsukasa× Uchiyama, Takashi× Nobuyuki, Nishimori× Ryoji, Nagai× Ryoichi, Hajima |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Operational experience of a 500 kV photoemission gun at the compact energy recovery linac (cERL) of the High Energy Accelerator Research Organization is presented. The gun, developed at the Japan Atomic Energy Agency, was found to have failures in two out of the ten-segment ceramic insulator just after installation at cERL. The gun had been operated at 390 kV with eight segments until April 2015 and provided a 0.9 mA beam. An additional two-segment insulator was installed on the top of the existing insulators to recover the high-voltage performance. The gun was then conditioned up to 539 kV and has been operated stably at 500 kV. No discharge caused by the gun itself was observed at 500 kVonce the high threshold voltage for stable operation exceeded 500 kV. A dark current of a few picoamperes was generated at 500 kV from a photocathode puck with a semiconducting wafer, while no dark current was observed without a semiconducting wafer. Stable generation of a 500 keV beam with current greater than 0.8 mA was demonstrated for more than two hours. | |||||
| 書誌情報 |
Physical Review Accelerators and Beams 巻 22, 号 5, p. 053402-1-053402-10, 発行日 2019-05 |
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| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2469-9888 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevAccelBeams.22.053402 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prab/abstract/10.1103/PhysRevAccelBeams.22.053402 | |||||
