重复频率亚纳秒脉冲硬X射线发生器
Development of a sub-nanosecond rep-rate pulse hard X-ray generator
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摘要: 研制了一种重复频率快脉冲硬X射线发生器，该发生器的主要设备包括纳秒脉冲功率源、亚纳秒脉冲发生器、功率负载二极管装置、真空系统和二极管运行监测探测器5部分。对该发生器的工作原理、结构特点进行了介绍，通过建立的发生器运行电参数监测以及辐射场参数测量手段，对源的运行电流、电压参数以及辐射场参数进行了初步监测和分析，并考验了源运行的稳定性。结果表明：该发生器结构以及运行方式灵活、稳定性好，实现了射线的能量上限、能谱、强度、脉宽等多种重要参数在线可调，且射线有一定的强度，可以为快响应探头标定等实验提供合适的纳秒、皮秒脉冲硬X射线辐射场。Abstract: A rep-rate fast pulse hard X-ray generator is developed. The specialties in principle and structure is described, and the experiment parameters of running voltage, current and X-ray radiation field are measured and analyzed. The stability of the source is investigated. The results show that the generator has flexible structure and running mode and can produce a medium intense rep-rate nanosecond or sub-nanosecond pulse hard X-ray radiation field, whose parameters of upper limit of energy, spectrum, intensity, pulse width, etc, are on-line controlled.
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Key words:
- sub-nanosecond pulse /
- rep-rate pulsed power source /
- hard x-ray /
- diode
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