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arXiv · 1809.09677

Boron-10 lined RPCs for sub-millimeter resolution thermal neutron detectors: Feasibility study in a thermal neutron beam

L. M. S. Margato·A. Morozov·A. Blanco·P. Fonte·F. A. F. Fraga·B. Guerard·R. Hall-Wilton·C. Höglund·A. Mangiarotti·L. Robinson·S. Schmidt·K. Zeitelhack
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Abstract

The results of an experimental feasibility study of a position sensitive thermal neutron detector based on a resistive plate chamber (RPC) are presented. The detector prototype features a thin-gap (0.35 mm) hybrid RPC with an aluminium cathode lined with a 2 ${\mu}$m thick $^{10}B{_4}C$ neutron converter layer enriched in $^{10}B$ and a float glass anode. A detection efficiency of ${\approx}$ 6.2 ${\%}$ was measured for the neutron beam (${\lambda}$ =2.5 ${\AA}$) at normal incidence. A spatial resolution better than 0.5 mm FWHM was demonstrated.

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L. M. S. Margato, A. Morozov, A. Blanco, P. Fonte, F. A. F. Fraga, B. Guerard, R. Hall-Wilton, C. Höglund, A. Mangiarotti, L. Robinson, S. Schmidt, K. Zeitelhack. 2018-09-25. Boron-10 lined RPCs for sub-millimeter resolution thermal neutron detectors: Feasibility study in a thermal neutron beam. https://doi.org/10.1088/1748-0221/14/01/p01017

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