Real-time signal processing in field programmable gate array based digital gamma-ray spectrometer
| Autor: | Hao Xiong, Quanfeng Zhou, Chaoyang Zhao, Yinyu Liu, Chunhui Dong, Shun Li |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics Spectrometer Gamma ray spectrometer business.industry Operating frequency 01 natural sciences 010305 fluids & plasmas Optics Digital spectroscopy 0103 physical sciences Real time signal processing Field-programmable gate array Hpge detector business Instrumentation Digital signal processing |
| Zdroj: | The Review of scientific instruments. 91(10) |
| ISSN: | 1089-7623 |
| Popis: | Field programmable gate arrays (FPGAs) are attractive for a digital spectrometer due to its advantages of digital signal processing. However, how to improve the versatility of the spectrometer and increase the operating frequency of the digital shaper has gradually become a limitation that needs to be resolved in the FPGA-based spectrometer. A solution to improve the universality of the FPGA-based digital spectroscopy system is presented in this work, and the implementation of the real-time digital signal processing unit is improved to obtain a higher operating frequency, and then the optimal parameters of the digital trapezoidal shaper and the processing unit are also discussed through a series of experiments; finally, a FPGA-based digital spectrometer is developed. With the HPGe detector, the spectrometer achieves excellent energy resolution performance of 0.35% at 662 keV, 0.25% at 1173.2 keV, and 0.23% at 1332.5 keV. |
| Databáze: | OpenAIRE |
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