evaluation of the products yields-absorbed dose relationship for benzene -carbon tetrachloride gamma irradiated system

gas chromatographic peak areas of the major products yields of γ- irradiated carbon tetrachloride - benzene system (chlorobenzene: PhCl, hexachloroethane: C2Cl6, trichloromethyl benzene: CCl3Ph, biphenyl: Ph2) was found to be linearly dependent on absorbed radiation dose from 0 kGy to 236 kGy. the linearity of the curves were evaluated according to regression coefficients (R2), and were found to be 0.9873, 09865,0.9735 and 0.9815 for PhCl, C2Cl6, CCl3Ph, and Ph2 respectively. statistical analysis of GC peak area measurements such as standard deviation, standard error, 95 %, 99 % confidences and % relative standard deviation (RSD) were calculated for each product. the uncertainty associated with products peaks areas as a response of the adsorbed dose was expressed in the term of coefficient of variation (CV %) . reproducibility of the readings at different absorbed doses as well as reliability was discussed. precision was also evaluated, according to CV % values of each product model. moreover, the knowledge of G-value of chlorobenzene in γ-irradiated carbon tetrachloride - benzene system, presents this model as a good candidate for the direct measurement of absorbed dose within the studied dose range.