A new digital pulse processing method for 2πα and 2πβ emitter measurement

Zheng Tu; Ke-Zhu Song; Ming Zhang; Zhi-Jie Yang; Zhi-Guo Ding; Hong-Wei Yu; Jun-Cheng Liang; Hao-Ran Liu

doi:10.1007/s41365-016-0137-z

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A new digital pulse processing method for 2πα and 2πβ emitter measurement

NUCLEAR ELECTRONICS AND INSTRUMENTATION | Updated：2021-02-23

- A new digital pulse processing method for 2πα and 2πβ emitter measurement
- Nuclear Science and Techniques Vol. 27, Issue 6, Article number: 138(2016)
- Affiliations：
  
  1.State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
  2.National Institute of Metrology, 18 North Third Ring East Rd., Beijing 100029 China
- Author bio：
  
  Corresponding author:skz@ustc.edu.cn
- Funds：
- DOI：10.1007/s41365-016-0137-z
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Zheng Tu, Ke-Zhu Song, Ming Zhang, et al. A new digital pulse processing method for 2πα and 2πβ emitter measurement. [J]. Nuclear Science and Techniques 27(6):138(2016)
DOI：

Zheng Tu, Ke-Zhu Song, Ming Zhang, et al. A new digital pulse processing method for 2πα and 2πβ emitter measurement. [J]. Nuclear Science and Techniques 27(6):138(2016) DOI： 10.1007/s41365-016-0137-z.

摘要

Abstract

Digital pulse processing has developed rapidly during recent years. Moreover, it has been widely applied in many fields. In this study, we introduce a digital pulse processing method for 2πα and 2πβ emitter measurement. Our digital pulse processing method for 2πα and 2πβ emitter measurement is comprised of a field programmable gate array (FPGA) based acquisition card and a pulse height analysis routine. We established 2 channels (one for the α emitter and one for the β emitter) on an acquisition board using an analog to digital converter (ADC) with a 16-bit resolution at a speed of 100 million samples per second (MSPS). In this study, we used captured and stored data to analyze emission rate counts and spectrums. The method we established takes into account noise cancelation, dead time correction, background subtraction, and zero-energy extrapolation. We carefully designed control procedures in order to simplify pulse width fitting and threshold level setting. We transmitted data and commands through a universal serial bus (USB) between the acquisition board and the computer. The results of our tests prove that our method performs well in pulse reconstruction fidelity and amplitude measurement accuracy. Compared to the current standard method for measuring 2πα and 2πβ emission rates, our system demonstrates excellent precision in emission rate counting.

关键词

Keywords

Digital pulse processingα and β Emitter MeasurementFPGA

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