Projects per year
Abstract
In this work we present a comparison between the two liquid scintillators BC-501A and BC-537 in terms of their performance regarding the pulse-shape discrimination between neutrons and γ rays. Special emphasis is put on the application of artificial neural networks. The results show a systematically higher γ-ray rejection ratio for BC-501A compared to BC-537 applying the commonly used charge comparison method. Using the artificial neural network approach the discrimination quality was improved to more than 95% rejection efficiency of γ rays over the energy range 150 to 1000 keV for both BC-501A and BC-537. However, due to the larger light output of BC-501A compared to BC-537, neutrons could be identified in BC-501A using artificial neural networks down to a recoil proton energy of 800 keV compared to a recoil deuteron energy of 1200 keV for BC-537. We conclude that using artificial neural networks it is possible to obtain the same γ-ray rejection quality from both BC-501A and BC-537 for neutrons above a low-energy threshold. This threshold is, however, lower for BC-501A, which is important for nuclear structure spectroscopy experiments of rare reaction channels where low-energy interactions dominates.
Original language | English |
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Pages (from-to) | 238-245 |
Number of pages | 8 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 916 |
Early online date | 30 Nov 2018 |
DOIs | |
Publication status | Published - 1 Feb 2019 |
Bibliographical note
© 2018 Elsevier B.V. All rights reserved. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.Keywords
- BC-501A
- BC-537
- Digital pulse-shape discrimination
- Fast-neutron detection
- Liquid scintillator
- Neural networks
Projects
- 2 Finished
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Nuclear Physics Consolidated Grant
Jenkins, D., Andreyev, A., Bentley, M., Diget, C. A., Dobaczewski, J. J., Fulton, B. R., Laird, A. M., Paschalis, S., Pastore, A., Petri, M. & Wadsworth, R.
SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)
1/10/17 → 30/09/22
Project: Research project (funded) › Research
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Nuclear Physics Consolidated Grant
Wadsworth, R., Wadsworth, R., Andreyev, A., Andreyev, A., Barton, C. J., Diget, C. A., Diget, C. A., Fulton, B. R., Fulton, B. R., Jenkins, D., Jenkins, D., Laird, A. M. & Laird, A. M.
SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC)
1/08/14 → 30/09/18
Project: Research project (funded) › Research