期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 84, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4803671
关键词
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资金
- National Natural Science Foundation of China [10735050, 10805031, 10975088]
- National Basic Research Program of China (973 Program) [2007CB815102]
Tsinghua Thomson Scattering X-ray Source (TTX) is the first-of-its-kind dedicated hard X-ray source in China based on the Thomson scattering between a terawatt ultrashort laser and relativistic electron beams. In this paper, we report the experimental generation and characterization of the first hard X-ray pulses (51.7 keV) via head-on collision of an 800 nm laser and 46.7 MeV electron beams. The measured yield is 1.0 x 10(6) per pulse with an electron bunch charge of 200 pC and laser pulse energy of 300 mJ. The angular intensity distribution and energy spectra of the X-ray pulse are measured with an electron-multiplying charge-coupled device using a CsI scintillator and silicon attenuators. These measurements agree well with theoretical and simulation predictions. An imaging test using the X-ray pulse at the TTX is also presented. (C) 2013 AIP Publishing LLC.
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