MeV-Energy X Rays from Inverse Compton Scattering with Laser-Wakefield Accelerated Electrons
MeV-Energy X Rays from Inverse Compton Scattering with Laser-Wakefield Accelerated Electrons
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DOI：
10.1103/physrevlett.110.155003
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发表时间：
2013-04-10
影响因子：
8.6
通讯作者：
Umstadter, D. P.
中科院分区：
文献类型：
--
作者：
Chen, S.;Powers, N. D.;Umstadter, D. P.
我们报道了使用波荡器和加速器产生MeV x射线，这两个装置都是由相同的100太瓦激光系统驱动的。驱动加速器的激光脉冲和散射激光脉冲被独立优化，以产生高能电子束(>；200 MeV)并最大化输出X射线亮度。实验测得X射线总光子数约为1×10(7)，源尺寸约为5微米，光束发散角约为10mrad。X射线光子能量的峰值为1 MeV(最高可达4 MeV)，超过了基本核过程的阈值(例如，对的产生和光解)。DOI：10.1103/PhysRevLett.110.155003
We report the generation of MeV x rays using an undulator and accelerator that are both driven by the same 100-terawatt laser system. The laser pulse driving the accelerator and the scattering laser pulse are independently optimized to generate a high energy electron beam (> 200 MeV) and maximize the output x-ray brightness. The total x-ray photon number was measured to be similar to 1 x 10(7), the source size was 5 mu m, and the beam divergence angle was similar to 10 mrad. The x-ray photon energy, peaked at 1 MeV (reaching up to 4 MeV), exceeds the thresholds of fundamental nuclear processes (e.g., pair production and photodisintegration). DOI: 10.1103/PhysRevLett.110.155003