Neutron discrepancies in the DS86 Hiroshima dosimetry system.
Neutron discrepancies in the DS86 Hiroshima dosimetry system.
复制标题
DS86 广岛剂量测定系统中的中子差异。
DOI：
10.1097/00004032-199210000-00006
复制
发表时间：
1992
期刊：
影响因子：
2.2
通讯作者：
M. Hoshi
中科院分区：
文献类型：
--
作者：
T. Straume;S. Egbert;Woolson Wa;R. Finkel;P. Kubik;H. Gove;Pankaj Sharma;M. Hoshi
More than a decade has passed since a complete revision was initiated of the radiation doses received by survivors of the Hiroshima and Nagasaki atomic bombings. The new dosimetry system (DS86) was completed in 1986 and adopted shortly thereafter. Overall, DS86 was noted to be a clear improvement over the old dosimetry system. However, based on limited validation measurements, troublesome inconsistencies were suggested for neutrons. Since 1986, a substantial number of additional neutron activation measurements have been made in mineral and metal samples from Hiroshima. Importantly, a large number of measurements have now been made at distances beyond 1 km. Here, inconsistencies between neutron activation measurements and DS86 calculations for Hiroshima are examined using all available measurement data, including new measurements for 36Cl which extend the measurement range to more than 1.7 km from the epicenter, and Monte Carlo modeling calculations for each sample measured. Results show that thermal neutron activation measured beyond approximately 1 km in Hiroshima (at distances most relevant for radiation-risk evaluation) is two to 10, or more, times higher than that calculated based on DS86. Similar trends observed when comparing results by several independent measurement laboratories, using different analytical methods, suggest that the DS86 calculations for low-energy neutrons are in error. Because of the importance of the Hiroshima data in radiation risk evaluation, this large discrepancy is in need of resolution.
原子弹复制品中的类广岛中子：其在生物实验中使用的物理基础。
影响因子：
3.4
作者：
Straume,T;McDonald,JC;Pederson,RA;Brenner,DJ;Dobson,RL
通讯作者：
Dobson,RL