Electron energy boosting in laser-wake-field acceleration with external magnetic field B∼1 T and laser prepulses
Electron energy boosting in laser-wake-field acceleration with external magnetic field B∼1 T and laser prepulses
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利用外部磁场 B〜1 T 和激光预脉冲增强激光尾流场加速中的电子能量
DOI：
10.1063/1.3371709
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发表时间：
2010
影响因子：
4
通讯作者：
R. Kodama
中科院分区：
文献类型：
--
作者：
T. Hosokai;A. Zhidkov;A. Yamazaki;Y. Mizuta;M. Uesaka;R. Kodama
在磁场B = 1T的氦气射流中，用低功率（7 TW，45 fs）激光脉冲产生了准单能分布的10兆电子伏电子束，其横向几何发射度小至10.02π mm mrad。 单能光束的产生与在主激光脉冲之前的短时间内出现直的、至少2 mm长的等离子体通道以及与共同传播的皮秒基座脉冲（PPP）的能量强烈相关。对于中等能量的PPP，沟道中的多个或分阶段的电子自注入在电子能量分布中给出几个窄峰。
Hundred-mega-electron-volt electron beams with quasi-monoenergetic distribution, and a transverse geometrical emittance as small as ∼0.02 π mm mrad are generated by low power (7 TW, 45 fs) laser pulses tightly focused in helium gas jets in an external static magnetic field, B∼1 T. Generation of monoenergetic beams strongly correlates with appearance of a straight, at least 2 mm length plasma channel in a short time before the main laser pulse and with the energy of copropagating picosecond pedestal pulses (PPP). For a moderate energy PPP, the multiple or staged electron self-injection in the channel gives several narrow peaks in the electron energy distribution.
影响因子：
64.8
作者：
Faure, J;Glinec, Y;Malka, V
通讯作者：
Malka, V