WEKO3
アイテム
Application of compact ECR ion source
https://repo.qst.go.jp/records/69087
https://repo.qst.go.jp/records/6908708564748-4476-4d7f-bca6-e30a71e7c747
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-09-05 | |||||
| タイトル | ||||||
| タイトル | Application of compact ECR ion source | |||||
| 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 |
Houjou, Satoru
× Houjou, Satoru× 北條 悟 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Abstract: A gas-pulsing system for an Electron Cyclotron Resonance Ion Source with all permanent magnets (Kei2-source) at NIRS has been developed and tested. The system consists of a small vessel (30 ml) to reserve CH4-gas, and two fast solenoid valves that are installed at both sides of the vessel. They are connected to each other and to the Kei2-source by using a stainless-steel pipe (4 mm in inner-diameter), where the length of the pipe from the valve to the source is 60 cm and the conductance is 1.2 l/s. From the results of a test, almost 300 eA for a pulsed 12C4+ beam was obtained at a Faraday-cup in an extraction-beam channel with a pressure range of 4000 Pa in the vessel. At this time, the valve has an open time of 10 ms and the delay time between the valve-open and applying microwave power is 100 ms, respectively. In experiments, the conversion efficiency for input CH4 molecules to the quantity of extracted 12C4+ ions in one beam-pulse was found to be around 3%, and the ratio of the total amount of the gas requirement was only 10% compared with a case of continuous gas provided in 3.3 second of repetition in HIMAC. |
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| 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 | 第12回イオン源国際会議 | |||||
| 発表年月日 | ||||||
| 日付 | 2007-08-31 | |||||
| 日付タイプ | Issued | |||||
