NUMERICAL-SOLUTIONS OF DIFFERENTIAL-EQUATIONS OF AN IONIZATION-CHAMBER - PLANE-PARALLEL AND SPHERICAL GEOMETRY

A system of reduced differential equations generally valid for plane-p arallel, cylindrical and spherical ionization chambers, which is appro priate for numerical solution, has been derived. The system has been s olved numerically for plane-parallel and spherical ionization chambers filled with air. The comparison of the calculated results of Armstron g and Tate, for plane-parallel ionization chambers, and Sprinkle and T ate, for spherical ionization chambers, with the present calculations has shown a good agreement. The calculated values for ionization chamb ers filled with CO2 were also in good agreement with the experimental data of Moriuchi et al.