辐照
氧气
缺氧(环境)
氧气张力
化学
辐射
放射化学
氧气增强率
剂量率
量子力学
物理
有机化学
核物理学
作者
Shirley Hornsey,D. K. Bewley
标识
DOI:10.1080/09553007114550611
摘要
SummaryThe effectiveness of radiation in killing mice within 4–5 days of whole-body irradiation is reduced for mice breathing oxygen during irradiation when the dose-rate is increased above 6 krads/min. The effectiveness of the radiation is not changed if the mice breath nitrogen during irradiation. This is considered to validate the hypothesis that at dose-rates above 6 krads/min the tissue oxygen tension may be reduced by the consumption of oxygen by the radiation products. A reduction in the biological effect of radiation will be observed when the dose is sufficiently high to reduce the oxygen tension in the tissues to levels which give some protection.
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