平行板雪崩探测器很早就用于核物理实验工作。但由于性能的限制,没有被广泛采用;直至七十年代中期,经过较大改进,作为一种精确的时间信号探测器,才又被用于重离子物理实验。由于平行板雪崩探测器输出信号上升时间快、工作介质厚度薄、无辐照损伤、有效面积可以做得相当大、不易受杂散电子干扰等,特别适宜作为用于重离子物理实验的透射型时间信号探测器。通常,平行板雪崩探测器由两片平行电极组成,中间为稀薄的工作气体,两电极间保持恒定的电压。被探测的带电粒子垂直于电极而穿过工作气体,产生原电离, Parallel plate avalanche detectors have long been used in nuclear physics experiments. However, due to performance limitations, it was not widely used. Until the mid-1970s, after much improvement, it was used as an accurate time signal detector in heavy ion physics experiments. As the parallel plate avalanche detector output signal rise time fast, thin working media thickness, no radiation damage, the effective area can be done quite large, not susceptible to stray interference, etc., especially suitable for heavy ion physics experiments transmissive Time signal detector. Typically, the parallel plate avalanche detector consists of two parallel electrodes, the middle of the thin working gas, the two electrodes to maintain a constant voltage. Detected charged particles perpendicular to the electrode and through the working gas, resulting in the original ionization,