Radiolysis of cyclohexane with perfluorocyclohexane at very high dose rates

Abstract

The radiolysis of liquid cyclohexane using perfluorocyclohexane as an electron scavenger has been examined at very high dose rates. The dose rates, to lo2* eV/g s, were such that geminate recombination of ions is essentially unaffected by dose rate, but high concentrations of radicals are produced, leading to radical-radical reactions. Up to 0.7 G units of the mixed dimer, C6Fl1.C6Hl1, were produced indicating that large concentrations of C,F1, radicals are formed in the neutralization process. Thus, at conventional dose rates (1016 eV/g s), C6FI 1H is probably produced by reactions of C6F1 radicals rather than by proton transfer to a perfluorocyclohexane or perfluorocyclohexyl anion.