| Project/Area Number |
20740154
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
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| Research Institution | High Energy Accelerator Research Organization |
|---|
Principal Investigator |
YOKOYAMA Kazue High Energy Accelerator Research Organization, 加速器研究施設, 助教 (70391711)
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|---|
| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | 加速器 / 高周波 / 高電界 / 真空放電 / 銅 / ステンレス / 材料・加工 / 放電 |
|---|
| Research Abstract |
To study the characteristics of breakdowns in different materials under a high RF field, a high-gradient experiment was proposed with using narrow waveguides which are reduced the height and the width in order to obtain a field of around 140 MV/m at 50 MW power. The breakdown rate, the sustainable electric field and the surface observation after high-gradient experiment were conducted on the two waveguide of copper (OFC) and stainless-steel (AISI-316L). The breakdown rate of the copper waveguide was found to be larger than that of the stainless-steel waveguide and they have different property corresponding to the electric fields and the pulse widths.
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