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Histological effects of low dose-rate gamma-irradiation. II. Observations in rats after 400 rad total-dose irradiation.

Elizabeth R. Unger

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Abstract

Concerning the effect of 1000 rd low-dose-rate (0.64 to 0.73 rd/min) gamma-irradiation generally a lesser degree of histological damage is observed in radiosensitive rat organs 7 days after irradiation than after the same dose of acute irradiation at the same interval. The evaluation of experimental results indicated that the cause of this phenomenon mainly is not reduced cell damage but the early initation of the regeneration and its accelerated rate as against the acute irradiation.

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Concerning the effect of 1000 rd low-dose-rate (0.64 to 0.73 rd/min) gamma-irradiation generally a lesser degree of histological damage is observed in radiosensitive rat organs 7 days after irradiation than after the same dose of acute irradiation at the same interval. The evaluation of experimental results indicated that the cause of this phenomenon mainly is not reduced cell damage but the early initation of the regeneration and its accelerated rate as against the acute irradiation.

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Available abstract

Concerning the effect of 1000 rd low-dose-rate (0.64 to 0.73 rd/min) gamma-irradiation generally a lesser degree of histological damage is observed in radiosensitive rat organs 7 days after irradiation than after the same dose of acute irradiation at the same interval. The evaluation of experimental results indicated that the cause of this phenomenon mainly is not reduced cell damage but the early initation of the regeneration and its accelerated rate as against the acute irradiation.

Key concepts: Irradiation, Dose rate, Gamma irradiation, Nuclear medicine, Medicine, Chemistry, Radiochemistry, Physics

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Histological effects of low dose-rate gamma-irradiation. II. Observations in rats after 400 rad total-dose irradiation. — Research Paper | ScholarLens