2013 Fiscal Year Final Research Report
Production of a femtosecond X-ray pulse using an electron beam driven by laser-plasma acceleration and its applications to time-resolved X-ray diffraction
| Project/Area Number |
23340186
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plasma science
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
MIURA Eisuke 独立行政法人産業技術総合研究所, エネルギー技術研究部門, 上級主任研究員 (10358070)
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| Co-Investigator(Kenkyū-buntansha) |
KURODA Ryunosuke 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 主任研究員 (70350428)
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| Co-Investigator(Renkei-kenkyūsha) |
TOYOKAWA Hiroyuki 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 研究グループ長 (80357582)
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| Research Collaborator |
TANAKA Kenji 東京理科大学, 大学院・理工学研究科電気工学専攻, 修士課程大学院生
KASHIWAYA Shun 東京理科大学, 理工学部電気工学科, 学生
MARUYAMA Kohki 宇都宮大学, 大学院・工学研究科電気工学専攻, 修士課程大学院生
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 高性能レーザー / プラズマ / 量子ビーム / レーザープラズマ加速 / レーザーコンプトン散乱 / フェムト秒X線パルス |
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| Research Abstract |
We have demonstrated X-ray pulse generation via laser Compton scattering (LCS), which is the scattering of a femtosecond laser pulse off a quasi-monoenergetic electron (QME) beam with a narrow energy spread driven by laser-plasma acceleration. A well-collimated X-ray beam with a divergence angle of approximately 5 mrad is produced using a QME beam containing 70 pC electrons with an energy of 60 MeV in the monoenergetic peak. The X-ray photon number is estimated to be 2E+7 per pulse, which is comparable to that achieved in LCS X-ray sources using rf accelerators. The peak energy of the X-rays is estimated to be 60 keV by a numerical simulation using the measured characteristics of the QME beam. It is also suggested that the X-ray pulse duration is on the order of 100 fs.
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