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Author Chanteur, J. ♦ Pellerin, P.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword BIOLOGY AND MEDICINE ♦ BETA PARTICLES ♦ BODY ♦ BONE MARROW ♦ BONES ♦ CALCIUM 45 ♦ DISTRIBUTION ♦ GAMMA RADIATION ♦ LIQUIDS ♦ LOW TEMPERATURE ♦ NITROGEN ♦ PHOSPHORUS 32 ♦ POLYMERS ♦ POTASSIUM 42 ♦ RADIOACTIVITY ♦ RADIOAUTOGRAPHY ♦ RATS ♦ SODIUM 24 ♦ THERMAL NEUTRONS ♦ TISSUES
Abstract Work was carried out to localize, by autoradiography at - 195 deg C, the organs of areas of the body of a rat capable of becoming the seat of radioactivity induced by exposure to a high flux of thermal neutrons. Rats weighing 25 g were placed alive, in pairs, in plastic irradiation cartridges and exposed to 5 min irradiation. After ascertaining that they had been killed by the flux of neutrons, the rats were immediately frozen in liquid nitrogen. Autoradiographs were made at times of 1, 2, 12, and 24 hrs, flux of thermal neutrons involved, by the radioactivity induced in the body, a general irradiation of relatively short duration by gamma rays of Na/sup 24/ and K/sup 42/ and to much longer irradiation essentially localized in the skeleton by the beta rays of P/sup 32/ and Ca/sup 45/. The bone marrow, therefore, must be considered as a critical organ with regard to irradiation by thermal neutrons. (M.C.G.)
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-08-01
Publisher Department Institut National d'Hygiene, Chatillon-sous-Bagneux, France
Journal Nature
Volume Number 187
Organization Institut National d'Hygiene, Chatillon-sous-Bagneux, France


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