Study of the induction period of the thermal decomposition of irradiated barium bromate

The influence of -irradiation upto 200 Mrad on the thermal decomposition of barium bromate has been studied in the temperature range 553–583 K. The fraction decomposed //-time /t/ characteristics for irradiated barium bromate exhibit stages, viz. initial gas and decay stages. Irradiation shortens the induction period conforming to the relation I=C₁–C₂ lg dose. All experimental data for induction period are tested against the values obtained from the theoretical calculations by making use of this induction-period dose relation. The topochemical aspect of the validity of the above relation has been considered to be due to the linear growth of nuclei during irradiation and subsequent exponential growth during the induction period.