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High Power Density Beam Measurement of a Single Beamlet from a Multi-Grid Prototype H- Negative Ion Accelerator
https://repo.qst.go.jp/records/85050
https://repo.qst.go.jp/records/850500d88e5b4-9d70-479d-b439-c77e084d0615
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-02-28 | |||||
| タイトル | ||||||
| タイトル | High Power Density Beam Measurement of a Single Beamlet from a Multi-Grid Prototype H- Negative Ion Accelerator | |||||
| 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 |
mae quinones Saquilayan, Glynnis
× mae quinones Saquilayan, Glynnis× Masashi, Kisaki× Atsushi, Kojima× Junichi, Hiratsuka× Masamichi, Murayama× Yuji, Shimabukuro× Kazuhiro, Watanabe× Hiroyuki, Tobari× Mieko, Kashiwagi× mae quinones Saquilayan, Glynnis× Masashi, Kisaki× Atsushi, Kojima× Junichi, Hiratsuka× Masamichi, Murayama× Yuji, Shimabukuro× Kazuhiro, Watanabe× Hiroyuki, Tobari× Mieko, Kashiwagi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The first emittance measurement of the high power density negative ion beam at target perveance conditions of the ITER accelerator was presented. Previously, the ITER requirement on grid headloads at <5% of the total acceleration power has been achieved but possible divergent beam components limit the long pulse beam acceleration due to melting and surface damages on the electrodes. To investigate and confirm the acceptable beam optics, thermal imaging on 1D-CFC tiles was newly developed to simultaneously measure both profiles and emittances of high-power density beams and investigate the overall beam parameters for a single-beamlet. As a result, unknown divergent components up to 10mrad comprise >2% of the total beam current, which can scrape the electrode apertures, was experimentally identified for the first time. These measurement results for the single beamlet contributes to future multiple-beam analysis and design of the ITER accelerator and beamline. | |||||
| 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 | The 19th International Conference on ions sources | |||||
| 発表年月日 | ||||||
| 日付 | 2021-09-23 | |||||
| 日付タイプ | Issued | |||||
