基于磁色散原理的三脉冲电子束能散测量
Energy-spread measurement of triple-pulse electron beams based on the magnetic dispersion principle
摘要：
本文用能散法测量了在磁场中产生的三脉冲电子束的能散。扇形磁铁用于电子束的能量分析，其具有300 mm的弯曲半径和90度的偏转角。对于每个脉冲，时间分辨和积分图像的电子位置在输出端口的弯曲束线被记录的条纹相机和CCD相机，分别。实验结果表明，电子脉冲的能量扩展小于± 2.0%。对不同探测器获得的腔电压波形进行了分析比较。
英文摘要：
The energy-spread of the triple-pulse electron beam generated by the Dragon-II linear induction accelerator is measured using the method of energy dispersion in the magnetic field. A sector magnet is applied for energy analyzing of the electron beam, which has a bending radius of 300 mm and a deflection angle of 90 degrees. For each pulse, both the time-resolved and the integral images of the electron position at the output port of the bending beam line are recorded by a streak camera and a CCD camera, respectively. Experimental results demonstrate an energy-spread of less than +-2.0% for the electron pulses. The cavity voltage waveforms obtained by different detectors are also analyzed for comparison.
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