Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source
We observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV. It was demonstrated that the measured spectrum of the mu...
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MDPI AG
2020-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/4/1418 |
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| author | Norihiro Sei Hiroshi Ogawa QiKa Jia |
| author_facet | Norihiro Sei Hiroshi Ogawa QiKa Jia |
| author_sort | Norihiro Sei |
| collection | DOAJ |
| description | We observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV. It was demonstrated that the measured spectrum of the multiple-collision FEL-Compton backscattering gamma rays was the summation of the spectra of the gamma rays generated at each collision point. Moreover, it was demonstrated that the spatial distribution of the multiple-collision FEL-Compton backscattering gamma rays was the summation of those of the gamma rays generated at each collision point. Our experimental results proved quantitatively that the multiple collisions in the FEL-Compton backscattering process are effective in increasing the yield of the gamma rays. By applying the multiple-collision FEL-Compton backscattering to high-repetition FEL devices such as energy recovery linac FELs, an unprecedented high-yield gamma-ray source with quasi-monochromaticity and wavelength tunability will be realized. |
| first_indexed | 2024-12-10T06:58:43Z |
| format | Article |
| id | doaj.art-61bff2e590ed4d48acf5225593ed526e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-10T06:58:43Z |
| publishDate | 2020-02-01 |
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| series | Applied Sciences |
| spelling | doaj.art-61bff2e590ed4d48acf5225593ed526e2022-12-22T01:58:23ZengMDPI AGApplied Sciences2076-34172020-02-01104141810.3390/app10041418app10041418Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray SourceNorihiro Sei0Hiroshi Ogawa1QiKa Jia2Research Institute for Measurement and Analytical Instrumentation, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, JapanResearch Institute for Measurement and Analytical Instrumentation, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, JapanNational Synchrotron Radiation laboratory, University of Science and Technology of China, Jinzhai Road 96, HeFei 230026, ChinaWe observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV. It was demonstrated that the measured spectrum of the multiple-collision FEL-Compton backscattering gamma rays was the summation of the spectra of the gamma rays generated at each collision point. Moreover, it was demonstrated that the spatial distribution of the multiple-collision FEL-Compton backscattering gamma rays was the summation of those of the gamma rays generated at each collision point. Our experimental results proved quantitatively that the multiple collisions in the FEL-Compton backscattering process are effective in increasing the yield of the gamma rays. By applying the multiple-collision FEL-Compton backscattering to high-repetition FEL devices such as energy recovery linac FELs, an unprecedented high-yield gamma-ray source with quasi-monochromaticity and wavelength tunability will be realized.https://www.mdpi.com/2076-3417/10/4/1418free-electron lasercompton backscatteringgamma raymultiple collision |
| spellingShingle | Norihiro Sei Hiroshi Ogawa QiKa Jia Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source Applied Sciences free-electron laser compton backscattering gamma ray multiple collision |
| title | Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source |
| title_full | Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source |
| title_fullStr | Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source |
| title_full_unstemmed | Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source |
| title_short | Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source |
| title_sort | multiple collision free electron laser compton backscattering for a high yield gamma ray source |
| topic | free-electron laser compton backscattering gamma ray multiple collision |
| url | https://www.mdpi.com/2076-3417/10/4/1418 |
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