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Published: 2017-06-30
Abstract Views: 174
Views PDF: 109
DOI: https://doi.org/10.53747/jnst.v7i2.112
Issue
Vol. 7 No. 2 (2017)
Section
Articles
How to Cite
Dang Hong , . N. Q., Pham, N. T., Tuong Thi, T. H., Phan, V. C., & Nguyen, N. D. (2017). The design and fabricate a pulse shape discriminator apply signal processing method using EJ-301 detector. Nuclear Science and Technology, 7(2), 51-55. https://doi.org/10.53747/jnst.v7i2.112

The design and fabricate a pulse shape discriminator apply signal processing method using EJ-301 detector

Dang Hong Ngoc Quy1, Pham Ngoc Tuan1, Tuong Thi Thu Huong1, Phan Van Chuan2, Nguyen Nhi Dien2
1 Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat, Lam Dong
2 Dalat university, 01 Phu Dong Thien Vuong, Lam Dong

Main Article Content

Abstract

The high quality measurements of neutron energy spectra are required in various fields of research and applications. However, in many cases the contribution of gamma background causes the inaccuracy of neutron spectrum. Therefore, the discrimination of gamma-ray events in neutron spectrum is necessary. In this article, an algorithm for digital implementation of the chargecomparison method for n/γ discrimination based on Digital Signal Processing technique is described. Furthermore, the APX-500 board was used as a hardware for the development of a Pulse Shape Disciminator, and is equipped with ADC ADM-414 14 bit-100 MSPS. The fully system has been tested with EJ-301 detector, using 252Cf neutron source.

Article Details

Keywords

Pulse Shaping Discriminator (PSD), Digital Signal Processing (DSP), EJ-301 scintillator

References

[1]. Moslem Amiri, Neutron/gamma-ray measurement and discrimination, PhD thesis, 2014.
[2]. M. L. Roush, M. A. Wilson, and W. F. Hornyak,
“Pulse shape discrimination,” Nucl. Instruments Methods, vol. 31, no. 1, pp. 112–124, 1964.
[3]. E. Bayat, N. Divani-Vais, M. M. Firoozabadi, and N. Ghal-Eh, “A comparative study on neutron-gamma discrimination with NE213 and UGLLT scintillators using zero-crossing method,” Radiat.
Phys. Chem., vol. 81, no. 3, pp. 217–220, 2012.
[4]. J. Cerny, Z. Dolezal, M. P. Ivanov, E. S. Kuzmin, J. Svejda, and I. Wilhelm, “Study of neutron response and n--γ discrimination by charge comparison method for small liquid scintillation detector,” Nucl. Instruments Methods Phys. Res. Sect. A Accel. Spectrometers, Detect. Assoc. Equip., vol. 527, no. 3, pp. 512–518, 2004.
[5]. G. Liu, M. J. Joyce, X. Ma, and M. D. Aspinall, “A digital method for the discrimination of neutrons and rays with organic scintillation detectors using frequency gradient analysis,” Nucl. Sci. IEEE Trans., vol. 57, no. 3, pp. 1682–1691, 2010.
[6]. 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.