A plastic scintillator-based 2D thermal neutron mapping system for use in BNCT studies

作者：Ghal Eh N^*; Green S

来源：Applied Radiation and Isotopes, 2016, 112: 31-37.

DOI：10.1016/j.apradiso.2016.03.002

• BNCT
• MCNP
• Scintillator
• Thermal neutrons

In this study, a scintillator-based measurement instrument is proposed which is capable of measuring a two-dimensional map of thermal neutrons within a phantom based on the detection of 2.22 MeV gamma rays generated via n(th) + H -> D + gamma reaction. The proposed instrument locates around a small rectangular water phantom (14 cm x 15 cm x 20 cm) used in Birmingham BNCT facility. The whole system has been simulated using MCNPX 2.6. The results confirm that the thermal flux peaks somewhere between 2 cm and 4 cm distance from the system entrance which is in agreement with previous studies.

• 出版日期2016-6