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Laser Compton scattering gamma-ray generation for Delbrück scattering experiments
https://repo.qst.go.jp/records/72867
https://repo.qst.go.jp/records/7286797020a3e-6fd3-4371-83b2-8de17ab91029
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-07-17 | |||||
| タイトル | ||||||
| タイトル | Laser Compton scattering gamma-ray generation for Delbrück scattering experiments | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Hayakawa, Takehito
× Hayakawa, Takehito× Shizuma, Toshiyuki× K., Koga Jame× Zen, Heishun× Kii, Toshiteru× Ohgaki, Hideaki× Fujimoto, Masaki× Katoh, Masahiro× 早川 岳人× 静間 俊行× コーガ ジェームズ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Delbrück scattering, in which a gamma-ray interacting with a Coulomb field creates an electron-position pair, which subsequently annihilates to generate a gamma-ray which energy is almost identical with the incident gamma-ray, is one of important phenomena to study non-linear effects by QED and vacuum polarization. Koga and Hayakawa [1] have presented that it is possible to measure selectively the amplitude of Delbrück scattering using linearly polarized gamma-ray beams. Furthermore, if one uses a linearly polarized beam with energies lower than 1.022 MeV, which is the threshold of the pair creation, it is possible to measure only the virtual process of Delbrück Scattering, namely vacuum polarization. For such a purpose, we have developed a laser Compton scattering (LCS) gamma-ray beam with a CO2 laser having a wavelength of 10 micro m at the UVSOR-III synchrotron radiation facility, in which the energy of the electron beam stored in top-up mode is approximately 750 MeV. We generated a 1-MeV LCS gamma-ray beam. We will also discuss future plans. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Nuclear Photonics 2018 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-06-26 | |||||
| 日付タイプ | Issued | |||||
