Research of RF discharge mechanism due to crystal characteristicsassociated with high-gradient acceleration
Project/Area Number |
22604013
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Quantum beam science
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Research Institution | High Energy Accelerator Research Organization |
Principal Investigator |
HIGO Toshiyasu 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 教授 (10156581)
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Co-Investigator(Kenkyū-buntansha) |
MATSUMOTO Shuji 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 准教授 (70249902)
HIGASHI Yasuo 大学共同利用機関法人高エネルギー加速器研究機構, 加速器科学支援センター, シニアフェロー (70208742)
CHAN Xiaowei 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造研究所, 研究機関講師 (80217257)
YOKOYAMA Kazue 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 助教 (70391711)
ABE Tetsuo 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 准教授 (70370070)
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Project Period (FY) |
2010 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | 高電界 / 結晶構造 / 真空放電 / 加速器 / 無酸素銅 / リニアコライダー / 国際共同研究 |
Research Abstract |
The vacuum arc happens on the surface under the high field sitting in the cavity where the electromagnetic field is confined. We assume that the crystal characteristics of the constituent material is the origin of the arcing, which happens once in several million pulses. A high-purity large-grain material is mechanically machined and heat treated in order to study the crystal nature of the material with high-resolution scanning electron microscope and synchrotron radiation. We found the different surface depending on the crystal orientation, the groove structure along the grain boundary and surface strain due to the impulse deposit of heat over the surface.
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Report
(4 results)
Research Products
(18 results)
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[Presentation] Comparison of High Gradient Performance in Varying Cavity Geometries2013
Author(s)
T. Higo, T. Abe, Y. Arakida, S. Matsumoto, T. Shidara, T. Takatomi, M. Yamanaka, Y. Higashi, A. Grudiev, G. Riddone, W. Wuensch
Organizer
WEPFI018,IPAC2013
Place of Presentation
Shanghai, China
Year and Date
2013-05-22
Related Report
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[Presentation] Various Observables of TW Accelerator Structures Operating in 100MV/m or Higher at X-Band Facility, Nextef of KEK2010
Author(s)
T. Higo, S. Matsumoto, K. Yokoyama, S. Fukuda, M. Akemoto, M. Yoshida, T. Shidara, T. Abe, Y. Higashi, T. Takatomi, Y. Watanabe, K. Ueno, N. Higashi, N. Kudoh
Organizer
THPEA012, IPAC2010
Place of Presentation
Kyoto
Related Report
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