Materials, Photonic Devices, and Sensors

Enhancement of laser-driven betatron radiation

[+] Author Affiliations
Minghua Li, Liming Chen, Wenchao Yan, Kai Huang, Yong Ma

Institute of Physics, Chinese Academy of Sciences, Laboratory of Optical Physics, Beijing National Laboratory of Condensed Matter Physics, P. O. Box 603 (33), Beijing 100190, China

Dazhang Li

Institute of High Energy Physics, Accelerator Center, Chinese Academy of Sciences, P. O. Box 918, Beijing 100049, China

Zhengming Sheng

Shanghai Jiao Tong University, Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics, 800 Dongchuan Road, Minhang District, Shanghai 200240, China

University of Strathclyde, SUPA, Department of Physics, Glasgow G4 0NG, United Kingdom

Jie Zhang

Shanghai Jiao Tong University, Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics, 800 Dongchuan Road, Minhang District, Shanghai 200240, China

Opt. Eng. 54(12), 127105 (Dec 21, 2015). doi:10.1117/1.OE.54.12.127105
History: Received September 19, 2015; Accepted November 18, 2015
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Abstract.  Betatron radiation from the transverse oscillation of laser-wakefield accelerated electrons is very promising for a wide range of applications. Currently, the main limitation of this radiation source is the x-ray photon yield. We present our recent progress in achieving higher photon flux using a clustering gas target instead of the normal gas jet, leading to a 10-fold enhancement. Moreover, we observed monoenergetic electron beams and bright x-rays simultaneously, an occurrence which is considered contradictory, and succeeded in using the betatron radiation as a probe in the evolution of bubble dynamics. These breakthroughs are of great significance for pushing the use of betatron radiation source toward new applications.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Minghua Li ; Liming Chen ; Dazhang Li ; Wenchao Yan ; Kai Huang, et al.
"Enhancement of laser-driven betatron radiation", Opt. Eng. 54(12), 127105 (Dec 21, 2015). ; http://dx.doi.org/10.1117/1.OE.54.12.127105


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