Rofors, E. et al. (2021) Response of a Li-glass/multi-anode photomultiplier detector to collimated thermal-neutron beams. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 999, 165170. (doi: 10.1016/j.nima.2021.165170)
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Abstract
The response of a position-sensitive Li-glass scintillator detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using collimated beams of thermal neutrons. The detector was moved perpendicularly through the neutron beams in 0.5 to 1.0 mm horizontal and vertical steps. Scintillation was detected in an 8 x 8 pixel multi-anode photomultiplier tube on an event-by-event basis. In general, several pixels registered large signals at each neutron-beam location. The number of pixels registering signal above a set threshold was investigated, with the maximization of the single-hit efficiency over the largest possible area of the detector as the primary goal. At a threshold of ~50% of the mean of the full-deposition peak, ~80% of the events were registered in a single pixel, resulting in an effective position resolution of ~5 mm in X and Y. Lower thresholds generally resulted in events demonstrating higher pixel multiplicities, but these events could also be localized with ~5 mm position resolution.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Hall-Wilton, Professor Richard and Al Jebali, Dr Ramsey and Boyd, Laura and Montgomery, Dr Rachel and Seitz, Dr Bjoern and Annand, Dr John |
| Creator Roles: | Al Jebali, R.Conceptualization, Methodology, Investigation, Resources, Supervision Annand, J.R.M.Conceptualization, Methodology, Software, Validation, Formal analysis, Writing – original draft, Writing – review and editing, Visualization, Supervision Boyd, L.Supervision Hall-Wilton, R.Conceptualization, Resources, Supervision, Project administration, Funding acquisition Montgomery, R.Supervision Seitz, B.Supervision |
| Authors: | Rofors, E., Mauritzson, N., Perrey, H., Al Jebali, R., Annand, J.R.M., Boyd, L., Christensen, M.J., Clemens, U., Desert, S., Engels, R., Fissum, K.G., Frielinghaus, H., Gheorghe, C., Hall-Wilton, R., Jaksch, S., Kanaki, K., Kazi, S., Kemmerling, G., Llamas Jansa, I., Maulerova, V., Montgomery, R., Richter, T., Scherzinger, J., Seitz, B., and Shetty, M. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment |
| Publisher: | Elsevier |
| ISSN: | 0168-9002 |
| ISSN (Online): | 1872-9576 |
| Published Online: | 25 February 2021 |
| Copyright Holders: | Copyright © 2021 The Authors |
| First Published: | First published in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 999: 165170 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Data DOI: | 10.5281/zenodo.4095210 |
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