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Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams

Rofors, E. LU ; Pallon, J. LU ; Al Jebali, R. ; Annand, J. R.M. LU ; Boyd, L. ; Christensen, M. J. LU ; Clemens, U. ; Desert, S. ; Elfman, M. LU and Engels, R. , et al. (2020) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 984.
Abstract

The response of a position-sensitive Li-glass based scintillation detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using focused beams of 2.5MeV protons and deuterons. The beams were scanned across the detector in 0.5 mm horizontal and vertical steps perpendicular to the beams. Scintillation light was registered using an 8 × 8 pixel multi-anode photomultiplier tube. The signal amplitudes were recorded for each pixel on an event-by-event basis. Several pixels generally registered considerable signals at each beam location. To optimize planned detector operation at the European Spallation Source, the number of pixels above set thresholds was investigated, with the maximization of... (More)

The response of a position-sensitive Li-glass based scintillation detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using focused beams of 2.5MeV protons and deuterons. The beams were scanned across the detector in 0.5 mm horizontal and vertical steps perpendicular to the beams. Scintillation light was registered using an 8 × 8 pixel multi-anode photomultiplier tube. The signal amplitudes were recorded for each pixel on an event-by-event basis. Several pixels generally registered considerable signals at each beam location. To optimize planned detector operation at the European Spallation Source, the number of pixels above set thresholds was investigated, with the maximization of the single-hit efficiency over the largest possible area as the primary goal. For both beams, 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 resulted in higher pixel multiplicities. These events could also be localized with the same effective position resolution.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Deuterons, GS20 scintillator, H12700A multi-anode photomultiplier, Li-glass, Position-dependent response, Protons, SoNDe thermal-neutron detector
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
984
article number
164604
publisher
Elsevier
external identifiers
  • scopus:85091244211
ISSN
0168-9002
DOI
10.1016/j.nima.2020.164604
language
English
LU publication?
yes
id
8ecc941e-6d46-473b-8246-7bd395949e98
date added to LUP
2020-10-21 17:08:38
date last changed
2020-10-28 11:42:53
@article{8ecc941e-6d46-473b-8246-7bd395949e98,
  abstract     = {<p>The response of a position-sensitive Li-glass based scintillation detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using focused beams of 2.5MeV protons and deuterons. The beams were scanned across the detector in 0.5 mm horizontal and vertical steps perpendicular to the beams. Scintillation light was registered using an 8 × 8 pixel multi-anode photomultiplier tube. The signal amplitudes were recorded for each pixel on an event-by-event basis. Several pixels generally registered considerable signals at each beam location. To optimize planned detector operation at the European Spallation Source, the number of pixels above set thresholds was investigated, with the maximization of the single-hit efficiency over the largest possible area as the primary goal. For both beams, 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 resulted in higher pixel multiplicities. These events could also be localized with the same effective position resolution.</p>},
  author       = {Rofors, E. and Pallon, J. and Al Jebali, R. and Annand, J. R.M. and Boyd, L. and Christensen, M. J. and Clemens, U. and Desert, S. and Elfman, M. and Engels, R. and Fissum, K. G. and Frielinghaus, H. and Frost, R. and Gardner, S. and Gheorghe, C. and Hall-Wilton, R. and Jaksch, S. and Kanaki, K. and Kemmerling, G. and Kristiansson, P. and Livingston, K. and Maulerova, V. and Mauritzson, N. and Montgomery, R. and Perrey, H. and Richter, T. and Scherzinger, J. and Seitz, B. and Shetty, M.},
  issn         = {0168-9002},
  language     = {eng},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
  title        = {Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams},
  url          = {http://dx.doi.org/10.1016/j.nima.2020.164604},
  doi          = {10.1016/j.nima.2020.164604},
  volume       = {984},
  year         = {2020},
}