Abstract
Technetium-99, the only radiologically important environmental technetium isotope, decays by beta emission with a maximum energy of 0.292 MeV and a specific activity of 0.63 TBq Kgā1 (TBq = 1012 Bq). The maximum yield from thermal neutron fission of U-235 is 6.06%. Several mechanisms exist for producing Tc-99 apart from direct fission. Whether Tc-99 is a waste problem depends on: The quantities in which the radionuclide is produced The amounts released to the environmenthe environmental behaviour, i.e. how easy is Tc transferred to man. The dose factor: Sievert pr Bq ingested or inhaled by man.
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Ā© 1987 Martinus Nijhoff Publishers, Dordrecht
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Aarkrog, A. (1987). TC-99 ā A Waste Problem?. In: Kristensen, K., NĆørbygaard, E. (eds) Safety and Efficacy of Radiopharmaceuticals 1987. Developments in Nuclear Medicine, vol 14. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3375-0_19
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DOI: https://doi.org/10.1007/978-94-009-3375-0_19
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