TITLE

Accumulation of Long-Lived 107Pd in Ruthenium Production by 99Tc Transmutation

AUTHOR(S)
Kozar', A. A.
PUB. DATE
January 2003
SOURCE
Radiochemistry;Jan/Feb2003, Vol. 45 Issue 1, p75
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Relationships in formation of long-lived 107Pd in 99Tc transmutation were discussed. The variation of the nuclide composition of the technetium charges and isolated artificial ruthenium at target recycling was analyzed. After several target irradiation and processing cycles, the steady-state concentrations of the noble metal isotopes in technetium are attained. The factor of the technetium removal from ruthenium was calculated, taking into account the 98Tc accumulation and incomplete removal of platinoids from the target. There is no need in removing palladium from transmutation-produced ruthenium, as at the 99Tc burnups of up to 90%, the arising 107Pd activity is by no less than an order of magnitude lower than the standards set for unlimited use of the metals. At higher burnups, it is sufficient to insignificantly increase the factor of technetium removal from ruthenium.
ACCESSION #
15101261

 

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