With the charged-particle decay spectroscopy extended to the proton drip-line region, half-lives of nuclei of interest decrease rapidly. Consequently, severe signal piling-up resulting from the implanted ions and their successive decays in position sensitive detectors become more and more common. To extract the spectroscopic information from the pile-up pulses with good accuracy, a digital pulse analysis algorithm is presented in this paper and validated with the $\alpha$ decay of ²¹⁹Th and the internal conversion electron decays of ${}^{210,211}$Ra isomers, all of which have $\sim$ $\mathrm{\mu }\mathrm{s}$ half-lives. The results show that with proper baseline correction, standard pulse construction and plateau-region fitting etc., the spectroscopic information of overlapping signals with time separation down to 80 ns and amplitude of individual pile-up pulse down to 70 keV, can be readily extracted.

随着带电粒子衰变光谱学扩展到质子滴线区域，目标原子核的半衰期迅速降低。因此，由注入的离子及其在位置敏感检测器中的连续衰减引起的严重信号堆积变得越来越普遍。为了以较高的精度从堆积脉冲中提取光谱信息，本文提出了一种数字脉冲分析算法，并对该算法进行了验证。$\alpha$²¹⁹ Th衰变和内部转换电子衰变${}^{210，211}$Ra异构体，都具有 $〜$ $\mathrm{\mu }\mathrm{s}$半衰期。结果表明，通过适当的基线校正，标准脉冲构造和高原区域拟合等，可以轻松提取时间间隔低至80 ns，单个堆积脉冲幅度低至70 keV的重叠信号的光谱信息。 。