DETERMINATION OF THE TOTAL EFFECTIVE DOSE OF EXTERNAL AND INTERNAL EXPOSURE BY DIFFERENT IONIZING RADIATION SOURCES

被引:1
|
作者
Kudryashev, V. A. [1 ]
Kim, D. S. [1 ]
机构
[1] Inst Nucl Phys, 1 Ibragimov St, Alma Ata 050032, Kazakhstan
关键词
D O I
10.1093/rpd/ncz170
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The purpose of the research is to develop an integrated technique for determining the effective dose (E) of external and internal exposure by different sources of ionizing radiation. The proposing technique for determining the total effective dose is based on three methods of calculation. The first one is multiplying the value of the individual dose equivalent H-p(10) by the factor of 0.642 to account for radiation shielding by various organs and tissues and its backscattering. The second method is multiplying H-p(10) by the conversion factor of air kerma in free air in a plate phantom, depending on the photon energy. The third method is multiplying H-p(10) by the sum of the radiosensitivity coefficients of various organs and tissues. As a result of research, a complex method was developed for determining the total effective dose, composed of doses of cosmic radiation, external gamma-, beta- and neutron radiation, internal exposure from radionuclides, including CDP of radon and thoron, entering the body through the organs of digestion and respiration. The proposed technique for determining the total effective dose allows one to take into account the comprehensive effect of ionizing radiation sources on a person and to obtain a more accurate measure of radiation risk than the existing methods provide.
引用
收藏
页码:129 / 137
页数:9
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