Characterization of diamond and organic scintillation detectors utilizing radiation sources for continuous plasma operation

被引：3

作者：

Iliasova, M. V. ^{[1
]}

Mirfayzi, S. R. ^{[1
]}

Rajput, M. ^{[1
]}

Chandrasekhar, K. ^{[1
]}

Fontana, M. ^{[1
]}

Hoffman, D. ^{[1
]}

O'Gorman, T. ^{[1
]}

Kamal, G. ^{[1
]}

McNamara, S. A. M. ^{[1
]}

Sertoli, M. ^{[1
]}

Sridhar, S. ^{[1
]}

Varje, J. ^{[1
]}

Wilson, C. ^{[1
]}

Zakhar, D. ^{[1
]}

Naylor, G. ^{[1
]}

机构：

[1] Tokamak Energy Ltd, 173 Brook Dr,Milton Pk, Abingdon OX14 SD, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2024年 / 95卷 / 08期

关键词：

DETECTION EFFICIENCY; LIGHT OUTPUT; NEUTRON;

D O I：

10.1063/5.0218866

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper provides a comprehensive study of neutron calibration methodologies, specifically highlighting the capabilities for n-gamma discrimination in diamond and EJ-309, and stilbene scintillation detectors. The calibration process detailed in this study includes pulse height analysis and pulse shape discrimination, relying on the analysis of charge deposition resulting from both gamma and neutron interactions. Utilizing Co-60 and Cf-252 radiation sources, the energy spectra of these sources are obtained. The characterized detectors were used in ST40 experiments and allowed acquiring neutron signal during a plasma shot with good agreement among diamond and scintillation detectors. Then, the diamond detector was cross-calibrated against indium activation foils placed at the same location in proximity to the ST40 during plasma shots: both detectors measured a neutron flux of approximate to 10(6) cm(-2) s(-1) at approximate to 1 m distance from the tokamak center, and the discrepancy between the diamond detector and the activation foils is approximate to 25%.

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页数：8

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