FIELD: medicine, in particular aseptic materials.
SUBSTANCE: claimed aseptic material contain semi-finished product to provide β-active radionuclides (e.g., 3T) in form of fine dispersed powder (lithium bicarbonate Li2CO3) in amount of 10-3-10-4 mass pts. Before application material is activated using neutron irradiation source (e.g., 252Cf radionuclide). Neutron action causes Li atom division and releasing of neutral helium and radioactive tritium atoms. Such radioactive tritium atom has β-electron free length of 10 mum and β-active radionuclide half-life of 12.34 years, and is acceptable in aseptic materials.
EFFECT: aseptic materials, articles based thereon, composition for production thereof with prolonged storage time.
1 ex
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Authors
Dates
2006-01-27—Published
2003-06-30—Filed