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X-ray detection capability of bismuth-loaded plastic scintillators

Masanori Koshimizu 1 Guillaume Bertrand 2 Matthieu Hamel 2 Shunji Kishimoto 3 Rie Haruki 3 Fumihiko Nishikido 4 Takayuki Yanagida 5 Yutaka Fujimoto 1 Keisuke Asai 1
1 Tohoku University [Sendai]
2 LCAE - Laboratoire Capteurs et Architectures Electroniques
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
3 NIMS - National Institute for Materials Science
4 MIC - Molecular Imaging Center [Chiba]
5 NAIST - Nara Institute of Science and Technology - Graduate School of Information Science
Abstract : We evaluated the high-energy X-ray detection capabilities of Bi-loaded plastic scintillators. The detection efficiency for 67.4 keV X-rays was successfully increased by increasing the Bi concentration. The detection efficiency of a plastic scintillator loaded with 10 wt % Bi was comparable to that of a commercially available plastic scintillator loaded with 5 wt % Pb, NE-142. A subnanosecond time resolution was achieved, and no long scintillation component appeared with Bi loading. These results indicate that Bi loading is an effective method of enhancing the detection efficiency for high-energy X-rays while preserving the timing properties of plastic scintillators.
Keywords : AVALANCHE PHOTODIODE DETECTOR Bi-loaded plastic scintillators high-energy X-ray detection
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https://hal-cea.archives-ouvertes.fr/cea-01721876
Contributor : Bruno Savelli <>
Submitted on : Friday, March 2, 2018 - 4:42:44 PM
Last modification on : Friday, June 25, 2021 - 10:00:02 AM

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Masanori Koshimizu, Guillaume Bertrand, Matthieu Hamel, Shunji Kishimoto, Rie Haruki, et al.. X-ray detection capability of bismuth-loaded plastic scintillators. Japanese Journal of Applied Physics, Japan Society of Applied Physics, 2015, 54 (10), pp.102202. ⟨10.7567/JJAP.54.102202⟩. ⟨cea-01721876⟩

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