NEUTRON RADIOGRAPHY AND DOSIMETRY IN HUMAN BEINGS - THEORETICAL STUDIES
NEUTRON RADIOGRAPHY AND DOSIMETRY IN HUMAN BEINGS - THEORETICAL STUDIES
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DOI：
10.1088/0031-9155/16/3/005
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发表时间：
1971-01-01
影响因子：
3.5
通讯作者：
PLECHATY, EF
中科院分区：
文献类型：
--
作者：
BUDINGER, TF;HOWERTON, RJ;PLECHATY, EF
计算了1keV、120keV、裂变能谱和14 MeV的中子入射到模拟人体手臂上的剂量分布，以确定中子照相作为一种实用的临床工具的可行性。透过厚达6厘米的组织的分辨率使中子照相技术变得不实用，除非是非常特殊的情况。剂量计算显示，与周围邻近组织相比，沉积在骨皮质中的剂量增加了两倍之多。皮肤剂量大约是组织内3厘米剂量的两倍。对于1keV、120keV、裂变能谱和14 MeV的中子，按每cm2入射10~10个中子的注量计算，ARM内的平均吸收剂量分别为0.5、1.6、10和40.4拉德。
Calculations were done for neutrons of 1 keV, 120 keV, fission spectrum, and 14 MeV, incident on a simulated human arm, to analyse the dose distributed to bone and marrow, and to determine the feasibility of neutron radiography as a practical clinical tool. The resolution possible through tissues as thick as 6 cm makes neutron radiography impractical except for very special circumstances. The dose calculations reveal as much as a twofold increase in dose deposited in the bone cortex compared with surrounding contiguous tissues. The skin dose is approximately twice the dose 3 cm inside the tissue. The average absorbed dose in the arm on the basis of a fluence of 10 10 neutrons incident per cm 2 is: 0.5, 1.6, 10, and 40.4 rads for 1 keV, 120 keV, fission spectrum and 14 MeV neutrons, respectively.