The density response of photographic emulsions to the radiations of Ca45, I131, P32 and Zn65 has been determined. Characteristic curves for all four isotopes against Eastman no-screen x-ray film and Eastman type M stripping film are presented, together with certain additional studies on Eastman NTB stripping film and Eastman type K x-ray film. The relative photographic effectiveness of the isotopes examined increases in the order: Zn65, P32, I131, Ca45, C14. Applications of the data for quantitative radioautography are discussed.
No takes yet. Share an insight, caveat, or question.
Steinberg et al. (1949) studied this question.