Yield constants of external bremsstrahlung (EB) excited by beta particles of strontium-90-yttrium-90 and technetium-99 in thick targets of different Z materials.

Energy yield and photon yield consts. of external bremsstrahlung were estd. by using I²-particles of 90Sr-90Y and 99Tc in thick targets of Cu, Mo, Ag, Cd, I and Pb. [on SciFinder(R)]