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

Authors

  • Phan Văn Chuân The Faculty of Physics, Dalat University, Viet Nam
  • Nguyễn Đức Hòa The Faculty of Nuclear Engineering, Dalat University, Viet Nam
  • Nguyễn Đắc Châu Vietnam Naval Academy, Viet Nam
  • Vương Nữ Minh Khuê The Communist Party Office, Dalat University, Viet Nam

DOI:

https://doi.org/10.37569/DalatUniversity.6.3.72(2016)

Keywords:

Correlation pattern method, FOM, Neutron-gamma pulse shape discrimination, Simulation of neutron and gamma pulse

Abstract

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.

Downloads

Download data is not yet available.

References

Roush, M. L., Wilson, M. A., & Hornyak, W. F. (1964). Pulse shape discrimination. Nucl. Instruments Methods, 31, 112-124.

Bayat, E., Divani-Vais, N., Firoozabadi, M. M., & Ghal-Eh, N. (2012). A comparative study on neutron-gamma discrimination with NE213 and UGLLT scintillators using zero-crossing method, Radiat. Phys. Chem, 81, 217-220.

Cerny, J., Dolezal, Z., Ivanov, M. P., Kuzmin, E. S., Svejda, J. & Wilhelm, I. (2004). Study of neutron response and n - γ discrimination by charge comparison method for small liquid scintillation detector. Nucl. Instruments Methods Phys, 527, 512-518.

Liu, G., Joyce, M. J., Ma, X. & Aspinall, M. D. (2010). A digital method for the discrimination of neutrons and rays with organic scintillation detectors using frequency gradient analysis. Nucl. Sci. IEEE Trans, 57, 1682-1691.

Takaku, D., Oishi, T. & Baba, M. (2011). Development of neutron-gamma discrimination technique using pattern-recognition method with digital signal processing. Nuclear Science and Technology, 1, 210-213.

Marrone, S., Cano-Ott, D., Colonna, N., Domingo, C., Gramegna, F., Gonzalez, E. M., Gunsing, F., Heil, M., Käppeler, F. & Mastinu, P. F. (2002). Pulse shape analysis of liquid scintillators for neutron studies. Nucl. Instruments Methods Phys, 490, 299-307.

Jastaniah. S. D. & Sellin, P. J. (2002). Digital pulse-shape algorithms for scintillation-based neutron detectors. IEEE Transactions on Nuclear Science, 49, 1824-1828.

Barra, S., Kouda, S., Dendouga, A. & Bouguechal, N. E. (2013). Simulink behavioral modeling of a 10-bit pipelined ADC. Int. J. Autom. Comput, 10, 134-142.

Knoll, G. F. (2000). Radiation Detection and Measurement (3rd ed.). New Jersey: John Wiley & Sons.

Spieler, H. (2002). Pulse processing and analysis. IEEE NPSS Short Course, Nucl. Sci. Symp. San Fr. Calif.

Mellow, B. D., Aspinall, M. D., Mackin, R. O., Joyce, M. J. & Peyton, A. J. (2007). Digital discrimination of neutrons and γ-rays in liquid scintillators using pulse gradient analysis. Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip, 578, 191-197.

Published

30-09-2016

Volume and Issues

Section

Natural Sciences and Technology

How to Cite

Chuân, P. V., Hòa, N. Đức, Châu, N. Đắc, & Khuê, V. N. M. (2016). STUDY ON NEUTRON – GAMMA PULSE SHAPE DISCRIMINATION ALGORITHMS FOR SCINTILLATION DETECTOR. Dalat University Journal of Science, 6(3), 281-292. https://doi.org/10.37569/DalatUniversity.6.3.72(2016)