Effect of heavy ions on bacterial spores.
Inactivation of B. subtilis spores has been studied using accelerated He, C, N, O and Ne ions. The energy dependence of the inactivation cross sections for heavy ions was very weak and the mean cross sections for carbon ions (0.6-4.7 MeV/amu), nitrogen ions (0.6-4.1 MeV/amu), oxygen ions (0.8-1.1 MeV/amu), and neon ions (2.2-3.7 MeV/amu) were found to be about 0.22, 0.23, 0.26, and 0.33 micrometer2 , respectively. Analysis was carried out along lines similar to Katz's target theory but the parameters were chosen so that they have an experimental basis.
Takahashi
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T
The Institute of Physical and Chemical Research, Wako-shi, Japan.
Yatagai
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Kitayama
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S
D001412:Bacillus subtilis / Q000254:growth & development / Q000528:radiation effects*; D002244:Carbon; D015169:Colony Count, Microbial; D017357:Cyclotrons; D004307:Dose-Response Relationship, Radiation; D020450:Heavy Ions; D006371:Helium; D018499:Linear Energy Transfer; D008962:Models, Theoretical; D009356:Neon; D009584:Nitrogen; D010100:Oxygen; D012062:Relative Biological Effectiveness; D012542:Scattering, Radiation; D013171:Spores, Bacterial / Q000528:radiation effects
D006371:Helium; D009356:Neon; D002244:Carbon; D009584:Nitrogen; D010100:Oxygen