TY - JOUR

T1 - Evaluation of boron-enriched plastic scintillator for thermal neutron detection

AU - Porosev, V. V.

AU - Savinov, G. A.

PY - 2019/6/3

Y1 - 2019/6/3

N2 - In recent years, we could observe significant progress in the design of accelerator-based neutron sources for boron neutron capture therapy (BNCT) . An important component of such systems is a neutron-sensitive detector system capable of monitoring the patient dose at significantly higher particle rates than in nuclear reactor systems. Simultaneous operation of two detectors: The first, sensitive to gammas, and the second, sensitive to gammas and neutrons, enables more accurate extraction of the neutron contribution. Scintillator-based detectors with fiber-optic readout have several important advantages. They are compact and have high speed, and additionally, the readout electronics can be placed far from the neutron source. In this research, we evaluated the main parameters of two plastic scintillators that are produced in Russia and meet this goal: SC-301 and boron-enriched SC-331. The resulting light yield of SC-331 was 8600 photons/MeV, and for SC-301 it was approximately 25% higher. Therefore, these scintillators are promising candidates for future detector systems.

AB - In recent years, we could observe significant progress in the design of accelerator-based neutron sources for boron neutron capture therapy (BNCT) . An important component of such systems is a neutron-sensitive detector system capable of monitoring the patient dose at significantly higher particle rates than in nuclear reactor systems. Simultaneous operation of two detectors: The first, sensitive to gammas, and the second, sensitive to gammas and neutrons, enables more accurate extraction of the neutron contribution. Scintillator-based detectors with fiber-optic readout have several important advantages. They are compact and have high speed, and additionally, the readout electronics can be placed far from the neutron source. In this research, we evaluated the main parameters of two plastic scintillators that are produced in Russia and meet this goal: SC-301 and boron-enriched SC-331. The resulting light yield of SC-331 was 8600 photons/MeV, and for SC-301 it was approximately 25% higher. Therefore, these scintillators are promising candidates for future detector systems.

KW - Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)

KW - Neutron detectors (cold, thermal, fast neutrons)

KW - Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)

KW - FIBER

UR - http://www.scopus.com/inward/record.url?scp=85069593895&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/14/06/P06003

DO - 10.1088/1748-0221/14/06/P06003

M3 - Article

AN - SCOPUS:85069593895

VL - 14

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 6

M1 - 06003

ER -