Gamma dose measurement in a water phantom irradiated with the BNCT facility at THOR
Gamma dose measurement in a water phantom irradiated with the BNCT facility at THOR
复制标题
DOI：
10.1093/oxfordjournals.rpd.a006560
复制
发表时间：
2001-01-01
影响因子：
1
通讯作者：
Liaw, TF
中科院分区：
文献类型：
--
作者：
Liu, HM;Hsu, PC;Liaw, TF
有人建议将LiF热释光剂量计用作由THOR的BNCT设施辐照的水模体中的伽马剂量计。基于MCNP程序模拟了水模体中的中子灵敏度和中子通量。本报告选择了1000 -700作为伽马剂量计。为了校正中子对氚-700的影响，用MCNP模拟方法研究了氚-700的热中子灵敏度，并用镉差法测量了热中子通量。根据热中子灵敏度、热中子通量和从热中子中的能量沉积到热中子响应的转换因子，建立了对热中子影响的修正。通过对实验数据与热中子影响修正的比较，这些数据与MCNP的预测符合得很好。
It has been proposed that a LiF thermoluminescence dosemeter TLD) is used as a gamma dosemeter in a water phantom irradiated with the BNCT facility at THOR. Based on the TLD neutron sensitivity and neutron fluxes in the water phantom, which were simulated by the MCNP code. TLD-700 was chosen as a gamma dosemeter in this report. For the correction of the neutron influence on TLD-700, the thermal neutron sensitivity to TLD-700 was investigated with MCNP simulation and the thermal neutron flux was measured with gold foils using the cadmium difference technique. The correction to the neutron influence on the TLD was established on the TLD thermal neutron sensitivity, the thermal neutron flux, and the conversion factor from energy deposition in the TLD to the TLD response. By comparing the experimental data with the thermal neutron influence correction, these data are in very good agreement with the MCNP predictions.