Response of a Li-glass/multi-anode photomultiplier detector to collimated thermal-neutron beams

• DOI: 10.1016/j.nima.2021.165170
• Publication Date: 2021-02-26T00:05:13Z
• Authors: E. Rofors; N. Mauritzson; H. Perrey; R. Al Jebali; J.R.M. Annand; L. Boyd; M.J. Christensen; U. Clemens; S. Desert; R. Engels; K.G. Fissum; H. Frielinghaus; C. Gheorghe; R. Hall-Wilton; S. Jaksch; K. Kanaki; S. Kazi; G. Kemmerling; I. Llamas Jansa; V. Maulerova; R. Montgomery; T. Richter; J. Scherzinger; B. Seitz; M. Shetty
• Keywords: Collimated light; Neutron Detection

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 thermal neutrons. was moved perpendicularly through the neutron in 0.5 to 1.0 horizontal and vertical steps. Scintillation detected an 8 × pixel multi-anode photomultiplier tube on event-by-event basis. In general, several pixels registered large signals at each neutron-beam location. number registering signal above set threshold investigated, maximization single-hit efficiency over largest possible area as primary goal. At ∼50% mean full-deposition peak, ∼80% events were single pixel, resulting effective ∼5 X Y. Lower thresholds generally resulted demonstrating higher multiplicities, but these could also be localized resolution.