An alternative method of neutron-gamma mixed-field dosimetry by using paired ionization chambers

作者：Nohtomi A^*; Sugiura N; Itoh T; Sakae T; Terunuma T; Fujibuchi T

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2010, 614(1): 159-161.

DOI：10.1016/j.nima.2009.12.047

• Paired ionization chamber
• Neutron absorbed dose
• Neutron-gamma mixed field
• Relative sensitivity
• Energy dependence

In order to expand the available energy range of neutron dosimetry by the paired ionization chambers, an alternative method has been newly proposed. The method employs another TE-TE chamber with a gamma-ray attenuator instead of conventional C-CO(2) chamber. A rough comparison of uncertainty estimates between conventional method and newly proposed one is carried out. The result indicates that the accuracy of the present method is far less-sensitive to the change of neutron energy and is evidently superior to that of the conventional method.

• 出版日期2010-2-21