Alpha energy spectrum measurement has been employed in the nuclear waste disposal of transuranic nuclides (such as ²³⁹Pu and ²⁴¹Am), supervision, and disposal process. The alpha spectrum is made up of alpha particles, which have a fast-moving helium nucleus and an energy of 4–8 MeV with weak penetration ability. Removing alpha particles from radioactive nuclides is an important scientific issue. In this study, a transuranic nuclide alpha particle pulse generator that produces simulated alpha particle pulses similar to real particles was designed. Field programmable gate array (FPGA) was adopted as its core chip and we obtained the digital pulse waveform using software tracing points while simulating real alpha particles by random numbers. Accordingly, the alpha energy spectrum of a radioactive source ²⁴¹Am was obtained using a passivated ion-implanted planar silicon (PIPS) detector. Afterward, the alpha particle was extracted from the energy spectrum and was then compared to the alpha particle pulse of the two methods, deriving a result. Here, both groupings of particle pulse waveforms were found to be very similar, and the periodic error of the particle was observed to be less than 1%. Furthermore, the amplitude and time interval of the particle were apparently similar to the actual spectrometry pulse.

中文翻译：

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超铀核素阿尔法光谱脉冲的高级直接数字合成发生器设计

Alpha能谱测量已用于超铀核素（如²³⁹ Pu和²⁴¹的核废料处理）中上午），监督和处置过程。α光谱由具有快速移动的氦核和4-8 MeV能量且穿透能力较弱的α粒子组成。从放射性核素中去除α粒子是一个重要的科学问题。在这项研究中，设计了一种能产生类似于真实粒子的模拟α粒子脉冲的超铀核素α粒子脉冲发生器。采用现场可编程门阵列（FPGA）作为其核心芯片，我们使用软件跟踪点获得了数字脉冲波形，同时通过随机数模拟了真实的alpha粒子。因此，放射源²⁴¹的α能谱使用钝化的离子注入平面硅（PIPS）检测器获得Am。然后，从能谱中提取出α粒子，然后将其与两种方法的α粒子脉冲进行比较，得出结果。在此，发现两组粒子脉冲波形非常相似，并且观察到粒子的周期性误差小于1％。此外，粒子的振幅和时间间隔显然类似于实际的光谱脉冲。