Errors and stability of radiometric gages with ionization chambers

The fundamental parameters are given of the modules of radiometric instruments designed by the Research Institute of Nuclear Instrumentation at Premysleni, such as ionization chambers, collimation shields, and ionization current amplifiers. A systematic classification is made of the elementary errors of ionization chamber measuring instruments. Practical instructions are presented for checking the stability of radiometric instruments and practical examples are given. (A.K.)