Photon spectrometry in thermal neutron standard field
Photon spectrometry in thermal neutron standard field
复制标题
DOI：
10.1016/s0168-9002(01)01434-6
复制
发表时间：
2002
影响因子：
1.4
通讯作者：
K. Kudo;N. Takeda;S. Koshikawa;H. Toyokawa;H. Ohgaki;M. Matzke
中科院分区：
文献类型：
--
作者：
K. Kudo;N. Takeda;S. Koshikawa;H. Toyokawa;H. Ohgaki;M. Matzke
用带有LiF滤光片的NE213液体闪烁计数器(直径5.08 cm，长5.08 cm)测量了热中子场中混合光子的能量分布。用EGS4/PRESTA程序计算了10 MeV能量范围内的光子响应函数矩阵，并用分辨函数进行了适当的折叠。用一组参考γ射线源测量的脉冲高度谱与计算的响应函数进行了比较，并对所有参考γ射线源进行了非常好的吻合。用HEPRO程序中的GORGLE和MIEKE程序显示了测量的脉冲高度谱。利用展开得到的能量分布计算了热中子场中混合光子的有效剂量当量。
An NE213 liquid scintillation counter (5.08cm in diameter and 5.08cm long) with an LiF filter was used to measure the energy distribution of photons mixed in a thermal neutron field. The response function matrix of photons in an energy range up to 10MeV was calculated by the EGS4/PRESTA code and properly folded with a resolution function. Pulse height spectra measured with a set of reference γ-ray sources were compared to the calculated response function and agreed very well for all reference γ-ray sources. The GRAVEL and MIEKE codes from the HEPRO program were used to unfold measured pulse height spectra. Energy distributions obtained by the unfolding were applied to evaluate the effective dose equivalent of photons mixed in a thermal neutron field.