THE TIME INTERVAL AFTER PULSED IRRADIATION WITHIN WHICH INJURY TO BACTERIA CAN BE MODIFIED BY DISSOLVED OXYGEN. I. A SEARCH FOR AN EFFECT OF OXYGEN 0.02 SECOND AFTER PULSED IRRADIATION. II. THE HYPOTHESIS THAT THE OXYGEN EFFECT INVOLVES A CARBON RADICAL: AND THE TIME TAKEN BY OXYGEN TO DIFFUSE TO AND REACT WITH SUCH A RADICAL
An investigation was made of the radiosensitivity of the dysentery bacillus Shigella flexneri to a shcrt pulsed irradiation with 1.2-Mev electrons delivered either before or after a sudden change in oxygen pressure. Results show that the stage in the development of the radiation injury at which oxygen may intervene does not extend for as long as 0.01 second after irradiation. The nature of this stage was investigated and an hypothesis is presented for the mechanism of radiation injury. (C.H.)
- Research Organization:
- Hammersmith Hospital, London; Univ. of California, Berkeley
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-13-001082
- OSTI ID:
- 4286791
- Journal Information:
- Radiation Research, Journal Name: Radiation Research Vol. Vol: 9
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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