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arXiv 1407.8003physics.acc-ph
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光栅数和脉冲数对相干Smith-Purcell辐射纵向轮廓测量分辨率的影响

Resolution of Longitudinal Profile Measures using Coherent Smith-Purcell Radiation with the Number of Gratings and the Number of Pulses Used

Mélissa Vieille Grosjean, Joanna Barros, Nicolas Delerue, Faissal Bakkali Taheri, George Doucas, Ivan Vasilyevich Konoplev, Armin Reichold, Christine Isabel Clarke

摘要:

E-203合作正在SLAC的FACET上测试一种设备,以使用Smith-Purcell辐射测量电子束的纵向轮廓。在FACET,电子聚束具有20 GeV的能量和几百飞秒的持续时间。当带电粒子靠近金属光栅表面时,会发出史密斯-珀塞尔辐射。我们研究了从脉冲到脉冲的测量的稳定性和测量的分辨率取决于所使用的光栅的数量。

英文摘要:

The E-203 collaboration is testing a device on FACET at SLAC to measure the longitudinal profile of electron bunches using Smith-Purcell radiation. At FACET the electron bunches have an energy of 20~GeV and a duration of a few hundred femtoseconds. Smith-Purcell radiation is emitted when a charged particle passes close to the surface of a metallic grating. We have studied the stability of the measurement from pulse to pulse and the resolution of the measure depending on the number of gratings used.

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