Multilayer $^{10}B$-RPC neutron imaging detector
| Autor: | L. Lopes, P.-O. Svensson, A. Blanco, S. Schmidt, A. Morozov, Richard Hall-Wilton, Karl Zeitelhack, L. Robinson, P. Fonte, Carina Höglund, L.M.S. Margato |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Resistive touchscreen
Materials science Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors 010308 nuclear & particles physics business.industry Neutron imaging Detector FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) 01 natural sciences Neutron temperature 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Optics Beamline Stack (abstract data type) 0103 physical sciences Neutron business Instrumentation Image resolution Mathematical Physics |
| Popis: | Resistive plate chambers (RPC) lined with $^{10}B_{4}$C neutron converters is a promising cost effective technology for position-sensitive thermal neutron detection capable to outperform $^{3}$He-based detectors in terms of spatial resolution and timing. However, as for the other types of gaseous detectors with a single layer of $^{10}B_{4}$C at normal beam incidence, the detection efficiency to thermal neutrons of a single-gap $^{10}B$-RPC is only about 6%. Aiming to overcome this limitation, we introduce a multi-layer $^{10}B$-RPCs detector with a stack of ten double-gap hybrid RPCs. A description of the detector design and the results of its characterization performed at the TREFF neutron beamline at the FRM II neutron facility are presented. The results demonstrate that the detection efficiency exceeds 60% for neutrons with a wavelength of 4.7 \r{A} and the spatial resolution (FWHM) is about 0.25 mm and 0.35 mm in the X and Y direction, respectively. |
| Databáze: | OpenAIRE |
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