External dose estimates of laboratory rats and mice during exposure to dispersed neutron-activated 56Mn powder
Stepanenko V. Sato H. Fujimoto N. Shichijo K. Toyoda S. Kawano N. Endo S. Kaprin A. Ivanov S. Shegay P. Petukhov A. Kolyzhenkov T. Bogacheva V. Chaizhunusova N. Shabdarbaeva D. Zhumadilov K. Hoshi M.
1 September 2022Oxford University Press
Journal of Radiation Research
2022#63I16 - I20 pp.
Estimates of external absorbed dose in experimental animals exposed to sprayed neutron-activated 56Mn powder are necessary for comparison with internal absorbed doses estimated under the same exposure conditions, which is required for a correct interpretation of the observed biological effects. It has been established that the measured dose of external absorbed dose as a result of gamma irradiation range 1-15 mGy, which is order of magnitude less than the maximal dose of internal gamma and beta irradiation of the whole body of the same experimental animals irradiated under the same conditions: according to the available literature data, the maximal values of absorbed dose of internal gamma-beta irradiation of the whole body are in the range of 330 mGy-1200 mGy for mice and 100 mGy-150 mGy for rats. It is concluded that under the conditions of experiments with dispersed neutron-activated powder 56MnO2, internal gamma-beta irradiation of experimental animals is the main factor of radiation exposure compared to external gamma irradiation.
dosimetry of external gamma-irradiation , laboratory animals , radiophotoluminescence glass dosimeters , sprayed neutron-activated 56Mn powder
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A. Tsyb Medical Radiological Research Center, Branch of the National Medical Research Radiological Center, The Ministry of Health of the Russian Federation, Koroleva Str., 4., Kaluga Region, Obninsk, 2490036, Russian Federation
Ibaraki Prefectural University of Health Sciences, 4669-2, Ami-machi, Inashiki-gun, Ibaraki, 300-0394, Japan
Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8551, Japan
Atomic Bomb Disease Institute, Nagasaki University, 1-12-4, Sakamoto, Nagasaki, 852-8102, Japan
Department of Applied Physics, Okayama University of Science, 1-1 Ridai, Kita-ku, Okayama, 700-0005, Japan
The Center for Peace, Hiroshima University, Higashisenda-machi 1-1-89, Naka-ku, Hiroshima, 730-0053, Japan
Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima, 739-8527, Japan
National Medical Research Radiological Center, The Ministry of Health of the Russian Federation, Koroleva Str., 4., Kaluga Region, Obninsk, 2490036, Russian Federation
Semey State Medical University, Abay Str., 103, Semey, 071400, Kazakhstan
L.N. Gumilyov Eurasian National University, Munaipasova Str. 13, Nur Sultan, 010008, Kazakhstan
A. Tsyb Medical Radiological Research Center
Ibaraki Prefectural University of Health Sciences
Research Institute for Radiation Biology and Medicine
Atomic Bomb Disease Institute
Department of Applied Physics
The Center for Peace
Graduate School of Advanced Science and Engineering
National Medical Research Radiological Center
Semey State Medical University
L.N. Gumilyov Eurasian National University
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