Journal Article

FZJ-2021-01372

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Response of a Li-glass/multi-anode photomultiplier detector to collimated thermal-neutron beams

Rofors, E. ; Mauritzson, N. ; Perrey, H. ; Al Jebali, R. ; Annand, J. R. M. ; Boyd, L. ; Christensen, M. J. ; Clemens, U.FZJ* ; Desert, S. ; Engels, R.FZJ* ; Fissum, K. G. (Corresponding author) ; Frielinghaus, H.FZJ* ; Gheorghe, C. ; Hall-Wilton, R. ; Jaksch, S.FZJ* ; Kanaki, K. ; Kazi, S. ; Kemmerling, G.FZJ* ; Llamas Jansa, I. ; Maulerova, V. ; Montgomery, R. ; Richter, T.Extern* ; Scherzinger, J. ; Seitz, B. ; Shetty, M.

2021
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/27469  doi:10.1016/j.nima.2021.165170

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 × 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.

Keyword(s): Instrument and Method Development (1st) ; Instrument and Method Development (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)
3. Neutronenstreuung (JCNS-1)
4. JCNS-4 (JCNS-4)
5. Zentralinstitut für Elektronik (ZEA-2)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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