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单光子入射方法测量超快硬X射线能谱

单光子入射方法测量超快硬X射线能谱[J]. 原子能科学技术, 2002, 36(1): 1-1. DOI: 10.7538/yzk.2002.36.01.0001
引用本文: 单光子入射方法测量超快硬X射线能谱[J]. 原子能科学技术, 2002, 36(1): 1-1. DOI: 10.7538/yzk.2002.36.01.0001
TAO Ye zheng 1,SHAN Yu sheng 1,WANG Nai yan 1,LI Ye jun 1,GAO Huai lin 1, TANG Xiu zhang 1,ZHANG Hai feng 1,SHI Zong ren 2,XU Kun 2,XING Yu 2 (1. China Institute of Atomic Energy,P.O.Box 275 7,Beijing 102413,China; 2. China Institute of Atomic Energy,P.O.Box 275 20,Beijing 102. Measuring Ultrafast X-ray Spectrum by Single-photon Incident Method[J]. Atomic Energy Science and Technology, 2002, 36(1): 1-1. DOI: 10.7538/yzk.2002.36.01.0001
Citation: TAO Ye zheng 1,SHAN Yu sheng 1,WANG Nai yan 1,LI Ye jun 1,GAO Huai lin 1, TANG Xiu zhang 1,ZHANG Hai feng 1,SHI Zong ren 2,XU Kun 2,XING Yu 2 (1. China Institute of Atomic Energy,P.O.Box 275 7,Beijing 102413,China; 2. China Institute of Atomic Energy,P.O.Box 275 20,Beijing 102. Measuring Ultrafast X-ray Spectrum by Single-photon Incident Method[J]. Atomic Energy Science and Technology, 2002, 36(1): 1-1. DOI: 10.7538/yzk.2002.36.01.0001

单光子入射方法测量超快硬X射线能谱

详细信息
  • 中图分类号: O53225

  • 摘要: 利用单光子入射方法测量了高强度超短脉冲激光 (1 3 0fs,1 0 16 W cm2, 744nm)与固体等离子体相互作用产生的超快 (ps)硬X射线 (>3 0keV)能量连续谱。采用铅屏蔽、激光脉冲和线性门同步符合技术将HPGeX射线谱仪的本底计数率降低到 1 0 -4 炮, 满足了单光子计数时的低本底要求。用该谱仪实际测量了激光等离子体产生的超快硬X射线能谱, 所得结果与理论预期符合。

     

    Abstract: Utilizing single photon incident method, the hard X ray continuum from interaction of intense ultrashort laser(130 fs,10 16 W/cm 2,744 nm) with solid plasma is measured. By use of Pb shielding and coincidence technology, the background counts are kept below 10 -4 per shot, which satisfies the low background requirement of single photon incident. The measured hard X ray spectrum coincides with theory prediction.

     

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出版历程
  • 收稿日期:  2001-04-06
  • 刊出日期:  2002-01-19

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