EFFECT OF RADIATION ON GROWTH OF VERTEBRAE IN TAILS OF RATS .3. RESPONSE TO CYCLOTRON NEUTRONS

被引:7
作者
DIXON, B
机构
[1] Experimental Radiopathology Research Unit, Medical Research Council, Hammersmith Hospital, W.12, London
[2] Department of Experimental Pathology and Cancer Research, The School of Medicine, University of Leeds, Leeds
来源
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY AND RELATED STUDIES IN PHYSICS CHEMISTRY AND MEDICINE | 1969年 / 15卷 / 06期
关键词
D O I
10.1080/09553006914550831
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
Vertebrae in the tails of young rats have been irradiated with single doses of cyclotron neutrons under reduced ('anoxic' normal and increased conditions of oxygenation. Oxygen is dose-modifying with neutrons. The oxygen-enhancement ratio is 1·44 (± 0·04) for single doses given in air. The RBE of neutrons decreases with increasing dose, and it is suggested that the neutron survival curve for epiphyseal cells in situ is exponential. This is consistent with the failure to obtain a significant sparing effect by fractionation of neutron doses given to rats breathing air. © 1969 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
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页码:541 / &
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