Radiation-physical characteristics of beta-sources on flexible inorganic basis

A possibility of producing 90Sr beta sources on a flexible inorganic base possessing high radiation and thermal stability is considered. An investigation into radiation-physical characteristics of test sources with the activity equal to 0.14 mCi/cm2 and 19.4 μCi/cm2 has shown that beta sources on a flexible inorganic base are characterized by a higher radiation yield, better uniformity of the dose field due to a greater radiation isotropy and by a more uniform distribution of an isotope over the source surface as compared with the available types of beta sources. High characteristics of sources on a flexible inorganic base, as well as the possibility to use them for producing irradiators with intricate configuration possessing a higher thermal stability determines a good outlook for their employment in irradiation plants