| Project/Area Number |
24654078
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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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 | SAGA Light Source, Kyushu Synchrotron Light Research Center |
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Principal Investigator |
TAKABAYASHI Yuichi 公益財団法人佐賀県地域産業支援センター九州シンクロトロン光研究センター, 加速器グループ, 副主任研究員 (50450953)
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| Co-Investigator(Kenkyū-buntansha) |
SUMITANI Kazushi 九州シンクロトロン光研究センター, ビームライングループ, 副主任研究員 (10416381)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | パラメトリックX線 / 相対論的電子ビーム / 結晶 / ビームモニタ |
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| Research Abstract |
A beam profile is extremely useful for the examination of the beam emittance and optical parameters associated with accelerators. Optical transition radiation (OTR) is commonly used as a high precision profile monitor for electron beams in linacs. However, it was found that for short beam bunches in linacs dedicated to X-ray free electron lasers, the OTR becomes coherent, making it unsuitable for use as a beam profile monitor.
In order to avoid this coherence, photons with shorter wavelengths are required. In this study, we propose to exploit parametric X-ray radiation through three new approaches: (i) a local method, (ii) a pinhole method, and (iii) a Fresnel-zone-plate (FZP) method. We have succeeded in performing proof-of-principle experiments on the local method and the pinhole method. In addition, we designed an experimental setup for the FZP method; its proof-of-principle experiment is in progress.
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