Book chapter
Tc-99 - A Waste Problem?
In
Safety and Efficacy of Radiopharmaceuticals 1987
—
1987, pp. 261-268
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 Kg−1 (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.
| Language: | English |
|---|---|
| Publisher: | Brill | Nijhoff |
| Year: | 1987 |
| Pages: | 261-268 |
| Series: | Developments in Nuclear Medicine, 14 |
| ISBN: | 0898389860 , 9400933754 , 940108016X , 940108016x , 9780898389869 , 9789400933750 and 9789401080163 |
| Types: | Book chapter |
| DOI: | 10.1007/978-94-009-3375-0_19 |
