Radiobiology of ultrasoft x rays. V. Modification of cell inactivation by dimethyl sulfoxide
- Los Alamos National Laboratory, NM (United States)
- MRC Radiobiology Unit, Didcot (United Kingdom)
- Univ. of California, La Jolla, CA (United States)
The effects of the radioprotector dimethyl sulfoxide (DMSO) were investigated for carbon-K (0.28 keV) and aluminum-K (1.47 keV) X rays compared with {sup 60}Co {gamma} rays for inactivation of mouse C3H 10T1/2 cells. The protection factor for 2 M DMSO was found to be 2.8 for both of the ultrasoft X-ray energies, which is not significantly different from the protection factor of 2.6 found for {gamma} rays. The results indicate that the proportion of scavengeable lethal damage from {gamma} and X rays does not depend on the proportion of the total energy that is deposited by low-energy electrons of relatively high ionization density. 22 refs., 4 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 387394
- Journal Information:
- Radiation Research, Journal Name: Radiation Research Journal Issue: 5 Vol. 145; ISSN 0033-7587; ISSN RAREAE
- Country of Publication:
- United States
- Language:
- English
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