1. Neutron–gamma discrimination based on quantum clustering technique.
- Author
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Lotfi, Y., Moussavi-Zarandi, S.A., Ghal-Eh, N., Pourjafarabadi, E., and Bayat, E.
- Subjects
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LIQUID scintillators , *DISCRIMINATION (Sociology) , *SCINTILLATORS , *NEUTRON sources , *FORM perception , *ACQUISITION of data - Abstract
In this study, the digital neutron–gamma discrimination (DNGD) has been undertaken based on the pulse-shape discrimination on the anode pulse of a 2" by 2" right cylinder BC501A liquid scintillator with a fast data acquisition card (14-bit resolution, 500 MS/s). Seven different features of the anode pulse have been extracted and the discrimination based on quantum clustering (DBQC) has been studied. The influence of three different parameters (i.e. , η , σ and K) on the discrimination figure-of-merit (FoM) has been investigated. In addition, the FoM dependencies on different choices of DBQC features have been determined. A 100 mCi 241Am-Be neutron source has been used for the DNGD and the calibration has been made with a 1.1 μ Ci 22Na gamma-ray source. The results show that the FoM value is around 1 at 100 keVee bias energy, whilst this value can be improved up to 50% by choosing and setting appropriate features. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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