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首页> 外文期刊>Journal of the Korean Physical Society >X-ray Radiation Emitted from the Betatron Oscillation of Electrons in LaserWakefields
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X-ray Radiation Emitted from the Betatron Oscillation of Electrons in LaserWakefields

机译:LaserWakefields中电子的电子加速器振荡产生的X射线辐射

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摘要

An ultra-intense short laser pulse incident on a plasma generates a blowout-regime wakefield,where almost all of the electrons are expelled radially by the ponderomotive force. Electrons injectedin an off-axis position of the blowout-regime wakefield experience transverse oscillations as well aslongitudinal acceleration, and emit intense X-rays from betatron oscillations. In order to investigatethe conditions for X-ray generation, we simulated the relativistic electron motion from wakefieldprofiles pre-calculated with a two-dimensional particle-in-cell code. The maximum energy of theoff-axis injected electrons reaches 900 MeV for a propagation time of 20 ps and the electron emitsintense X-ray radiation with energies up to 13 keV.
机译:入射到等离子体上的超强短激光脉冲会产生喷吹区尾流场,在该场中几乎所有电子都通过质动力被径向排出。注入井喷区尾流轴外位置的电子会经历横向振荡以及纵向加速度,并会从电子感应加速器振荡中发出强烈的X射线。为了研究产生X射线的条件,我们从用二维单元格代码预先计算的尾流场轮廓模拟了相对论电子运动。轴外注入电子的最大能量在20 ps的传播时间内达到900 MeV,并且电子发射能量高达13 keV的强烈X射线辐射。

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