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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 6 — Jun. 10, 2012
  • pp: 063501–

Laser wakefield electron acceleration for γ-ray radiography application

Yuchi Wu, Zongqing Zhao, Bin Zhu, Kegong Dong, Xianlun Wen, Yingling He, Yuqiu Gu, and Baohan Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 6, pp. 063501- (2012)


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Abstract

An electron beam is obtained using laser wakefield electron accelerator, and converted into a γ-ray source after undergoing bremsstrahlung radiation in a dense material. A quasi-monoenergetic structure is observed when the length of the plasma channel was modified. The structure has a 58-MeV peak energy, 15-mrad (full-width at half-maximum) divergence angle, and 340-pC charge. The γ-ray source generated by this high-quality electron beam is brighter and has higher spatial and temporal resolutions than other conventional sources. A γ-ray radiography demonstrational experiment is performed. Pictures of a ball with different layers made of different materials are taken. The results show a clear structure and density resolution.

© 2012 Chinese Optics Letters

OCIS Codes
(170.2670) Medical optics and biotechnology : Gamma ray imaging
(350.5400) Other areas of optics : Plasmas
(350.5720) Other areas of optics : Relativity

ToC Category:
Other Areas of Optics

Citation
Yuchi Wu, Zongqing Zhao, Bin Zhu, Kegong Dong, Xianlun Wen, Yingling He, Yuqiu Gu, and Baohan Zhang, "Laser wakefield electron acceleration for γ-ray radiography application," Chin. Opt. Lett. 10, 063501- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-6-063501


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