STUDY ON NEUTRON – GAMMA PULSE SHAPE DISCRIMINATION ALGORITHMS FOR SCINTILLATION DETECTOR

• Main Authors: Phan Văn Chuân, Nguyễn Đức Hòa, Nguyễn Đắc Châu, Vương Nữ Minh Khuê
• Format: Article
• Language: English
• Published: Dalat University 2016-09-01
• Series: Tạp chí Khoa học Đại học Đà Lạt
• Subjects: fom; mô phỏng xung nơtron và gamma; phân biệt dạng xung nơtron-gamma; phương thức tương quan mẫu
• Online Access: http://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/72
• ISSN: 0866-787X; 0866-787X

The four neutron - gamma pulsed shape discrimination algorithms for the model NE213 scintillation detector by using digital signal processing were developed. In this study, a pulse generator, pulse digitizer and neutron - gamma pulsed shape discrimination algorithms are simulated in Matlab, Simulink software. The results obtained show that the method to rise-time discrimination has a quality factor (Figure-of-Merits: FOM=1.09), pulsed gradient analysis method (FOM = 0.66), charge comparison method (FOM = 2.21), and correlation pattern method (FOM = 1.97). This result is the basis for building systems for measurements of neutron using scintillation detectors.