[Studies on the sensitivity of ionization chambers (author's transl)].

In spite of small geometrical dimensions of the ionization chambers, the sensitivity distribution throughout the entire chamber must be considered if conditions are extreme (small size of field, short distances). Various types of chambers were studied with regard to their response threshold along their axis. Taking the different wall thicknesses into consideration, different ionization chambers show good agreement with regard to the accumulation effect of Co-60 gamma radiation.