Discussion Transport of activated species and chemistry of radiation dose control; BWR: Papers 43-51

Mr W.G. Burns (UKAEA, AERE Harwell) Examples of the effects of radiolysis and radio-lytic reactions have been the reduction of oxygen levels by added hydrogen in the Oskarshamm reactor (mentioned in Paper 15) and the results of the work on the effect of radiation on corrosion product release, which has just been presented in Paper 43.

The final concentration of radiolytic products both molecular (H2, H2O2 and O2) and radial (e~ , H, OH, HO2 or Op depend on the dynamic equilibrium resulting from about 30 well-known reactions between the initial radiolytic products and the initial G values of the primary species formed per 100 eV volts energy, have until recently not been measured at high temperatures and low temperature values have been used. Table 1. shows low temperature values for gamma rays and for neutrons which I have used in calculations presented at the 1977 conference .