TY - GEN
T1 - Neutron-Gamma Discrimination Comparison of Three Organic Scintillators with CFD-based Pulse Shape Discrimination Method
AU - Zhou, Jianxin
AU - Abdulaziz, Abdullah
AU - Altmann, Yoann
AU - Di Fulvio, Angela
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this work, we compare the pulse shape discrimination (PSD) capabilities of three organic scintillators. Accurate PSD relies on the optimization of pulse processing parameters. For example, in charge integration based PSD, the results depend heavily on the choices of the pulse gates. The PSD method that developed here to improve the traditional charge integration method by using constant fraction discrimination (CFD) on the tail of each pulse to find the best integration settings. The advantage of this approach is that optimization is not needed to find the gate time and only the detector response to gamma rays is needed to find optimal PSD parameters. The organic scintillators compared in this paper are a) the recently-developed deuterated trans-stilbene (stilbene-d12), b) the EJ-309 liquid scintillator, and c) the small-molecule organic glass scintillator. The three detectors are used to measure a252Cf neutron source and calculated the figure-of-merit to evaluate the PSD performance. The result demonstrates that the method is robust and applies regardless of the detector type. The stilbene-d12 outperforms the other two detectors in terms of PSD ability, for a given light output range, and therefore, it is most suitable for neutron/gamma discrimination applications.
AB - In this work, we compare the pulse shape discrimination (PSD) capabilities of three organic scintillators. Accurate PSD relies on the optimization of pulse processing parameters. For example, in charge integration based PSD, the results depend heavily on the choices of the pulse gates. The PSD method that developed here to improve the traditional charge integration method by using constant fraction discrimination (CFD) on the tail of each pulse to find the best integration settings. The advantage of this approach is that optimization is not needed to find the gate time and only the detector response to gamma rays is needed to find optimal PSD parameters. The organic scintillators compared in this paper are a) the recently-developed deuterated trans-stilbene (stilbene-d12), b) the EJ-309 liquid scintillator, and c) the small-molecule organic glass scintillator. The three detectors are used to measure a252Cf neutron source and calculated the figure-of-merit to evaluate the PSD performance. The result demonstrates that the method is robust and applies regardless of the detector type. The stilbene-d12 outperforms the other two detectors in terms of PSD ability, for a given light output range, and therefore, it is most suitable for neutron/gamma discrimination applications.
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U2 - 10.1109/NSS/MIC44845.2022.10398935
DO - 10.1109/NSS/MIC44845.2022.10398935
M3 - Conference contribution
AN - SCOPUS:85185373614
T3 - 2022 IEEE NSS/MIC RTSD - IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference
BT - 2022 IEEE NSS/MIC RTSD - IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Nuclear Science Symposium, Medical Imaging Conference, and Room Temperature Semiconductor Detector Conference, IEEE NSS MIC RTSD 2022
Y2 - 5 November 2022 through 12 November 2022
ER -