TEMPERATURE-DEPENDENCE OF G-VALUE FOR AQUEOUS-SOLUTIONS IRRADIATED WITH 23 MEV H-2(-7(3+) ION-BEAMS() AND 157 MEV LI)

The temperature (T) dependence of the g values for the radiolysis of w ater with 23 MeV H-2(+) and 157 MeV Li-7(3+) ion beams is reported. Th e results indicate that as the linear energy transfer characteristics of the radiation increase, (i) d(g(e(aq)(-)))/dT decreases, (ii) d(g(H -2)/dT increases, (iii) d(g(OH))/dT remains constant, and (iv) d(g(H2O 2))/dT is approximately constant. These observations are qualitatively consistent with the kinetic-diffusion model of the spur/track. The g values for 2 MeV fission neutrons have been estimated from these ion b eam results for the temperature range 75-300 degrees C.