紫外探针光信号与加速器负载电流脉冲的精密同步技术
Precise synchronization of UV laser probe system with the load current of accelerator
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摘要: 作为探针光源的Nd∶YAG激光器在其外触发控制线路固有延迟减小至100 ns后，从脉冲加速器形成线的主开关处选取Q开关的触发输入信号，利用示波器将激光器Q开关触发信号、加速器主开关触发信号、激光信号以及负载电流信号进行时间关联，测量结果作为调节系统延迟时间的依据，实现了探针光脉冲与加速器负载电流脉冲之间的精密同步，同步精度达到9.6 ns。Abstract: In this article, an Nd∶YAG laser is used as light source of the probe system. The main switch signal of the pulsed accelerator can be chosen with specific time delay to trigger the laser system after a 100 ns innate time delay of the laser outer-triggered controlling circuit is attained. In the experiment the triggering signal of Q-switch, the laser light signal, the triggering signal of main switch of the accelerator and load current are temporally associated with an oscilloscope. The delay time of the adjustment system is based on results of measurement of the time association. The synchronization of 9.6 ns between light pulse of probe system and accelerator load current is realized.
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Key words:
- laser probe /
- pulsed accelerator /
- synchronization precision /
- jitter
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