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Radiobiology of ultrasoft x rays. V. Modification of cell inactivation by dimethyl sulfoxide

Journal Article · · Radiation Research
DOI:https://doi.org/10.2307/3579274· OSTI ID:387394
; ;  [1];  [2];  [3]
  1. Los Alamos National Laboratory, NM (United States)
  2. MRC Radiobiology Unit, Didcot (United Kingdom)
  3. 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