Determination of uranium and plutonium in shielding concrete

Weinreich, R.; Bajo, S.; Eikenberg, J.; Atchison, F.
August 2004
Journal of Radioanalytical & Nuclear Chemistry;Aug2004, Vol. 261 Issue 2, p319
Academic Journal
The formation of plutonium radionuclides (239+240Pu) from uranium was determined in dismounted shielding concrete from accelerator components. Plutonium and uranium fractions were separated by radioanalytical techniques and measured by a-spectroscopy. The measurements are consistent with yield calculations based on transport and single particle codes. The yield of 239+240Pu did not exceed the two-fold exemption limit given in the Swiss Radiation Protection Law, thus the plutonium content in shielding concrete should not cause problem for the environment.


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