Pile-up pulse continuous zone reject method

Jie Yu; Jianbin Zhou; Yi Liu; Xianguo Tuo; Min Wang; Xing Zhu

doi:10.1016/j.apradiso.2020.109319

Pile-up pulse continuous zone reject method

Appl Radiat Isot. 2020 Nov:165:109319. doi: 10.1016/j.apradiso.2020.109319. Epub 2020 Jul 5.

Authors

Jie Yu¹, Jianbin Zhou², Yi Liu¹, Xianguo Tuo¹, Min Wang¹, Xing Zhu¹

Affiliations

¹ College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, China.
² College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, China. Electronic address: zjb@cdut.edu.cn.

PMID: 32771871
DOI: 10.1016/j.apradiso.2020.109319

Abstract

This paper proposes a new method to reject pile-up pulse continuous zone. This paper first simulates the differences between three kinds trapezoidal shaping methods of which are trapezoidal shaping without width discrimination, with fixed width discrimination or with changing width discrimination, and then carry out experiment with silicon drift detector (SDD) and ⁵⁵Fe source in laboratory, and the result of the experiment is that the ratio of peak to background (P/B) increases while the characteristic peaks in high energy section are not affected. Result of the simulation and experiment shows that the method proposed in this paper makes progress in pile-up pulse continuous zone rejection under the circumstance of high-count rates.

Keywords: Pile-up pulse continuous zone; Pile-up pulses; Pulse width discrimination; Trapezoid shaping.

Publication types

Review