Multilayer 10B-RPC neutron imaging detector

被引：7

作者：

Margato, L. M. S. ^{[1
]}

Morozov, A. ^{[1
]}

Blanco, A. A. ^{[1
]}

Fonte, P. ^{[1
,2
]}

Lopes, L. ^{[1
]}

Zeitelhack, K. ^{[3
]}

Hall-Wilton, R. ^{[4
,5
,6
]}

Hoeglund, C. ^{[4
,7
]}

Robinson, L. ^{[4
]}

Schmidt, S. ^{[4
,8
]}

Svensson, P. ^{[4
]}

机构：

[1] Univ Coimbra, Dept Fis, LIP Coimbra, Rua Largo, P-3004516 Coimbra, Portugal

[2] Coimbra Polytech, ISEC, Coimbra, Portugal

[3] Tech Univ Munich, FRM II, Heinz Maier Leibnitz Zentrum MLZ, D-85748 Garching, Germany

[4] European Spallat Source ERIC ESS, POB 176, SE-22100 Lund, Sweden

[5] Univ Milano Bicocca, ESS, Piazza Sci 3, I-20126 Milan, Italy

[6] Univ Milano Bicocca, Dipartimento Fis G Occhialini, Piazza Sci 3, I-20126 Milan, Italy

[7] Impact Coatings AB, Westmansgatan 29G, SE-58216 Linkoping, Sweden

[8] IHI Ionbond AG, Ind Str 211, CH-4600 Olten, Switzerland

来源：

JOURNAL OF INSTRUMENTATION | 2020年 / 15卷 / 06期

基金：

欧盟地平线“2020”;

关键词：

Neutron detectors (cold; thermal; fast neutrons); Gaseous detectors; Resistive-plate chambers; COUNTER;

D O I：

10.1088/1748-0221/15/06/P06007

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Resistive plate chambers (RPC) lined with (B4C)-B-10 neutron converters is a promising cost-effective technology for position-sensitive thermal neutron detection capable to outperform He-3-based detectors in terms of spatial resolution and timing. However, as for the other types of gaseous detectors with a single layer of (B4C)-B-10 at normal beam incidence, the detection efficiency to thermal neutrons of a single-gap B-10-RPC is only about 6%. Aiming to overcome this limitation, we introduce a multi-layer B-10-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 angstrom and the spatial resolution (FWHM) is about 0.25 mm and 0.35 mm in the X and Y direction, respectively.

引用

页数：12

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