Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Study into the dependence of the Co-60 and Lu-177g efficiency production on the energy structure of neutron flux density

9/25/2023 2023 - #03 Physics in nuclear power engineering

Shaginyan R.A. Korobeynikov V.V. Stogov V.Yu.

DOI: https://doi.org/10.26583/npe.2023.3.11

UDC:

At present, the existing approaches to production of artificial isotopes are mostly based on the development experience from previous years. This work aims to develop an algorithm for selecting the most effective irradiation modes for target materials. The study is based on sequential modeling of irradiation of target isotopes by neutrons of different ‘single-group’ fluxes at the same neutron flux density within each energy group (ABBN-93). In this study, a flux density equal to 2Ч10 15 n/(cm 2Чs) was used for each energy group. This approach will help ‘designing’ and selecting the actual neutron spectrum that has the highest efficiency compared to alternatives.

The study modelled Co-60 and Lu-177g production for each energy group. The kinetics was analyzed in the most efficient groups in terms of specific activity.

The maximum specific activity for Co-60 is reached in group 17 and is equal to 1 kCi/g.

For the scheme of Lu-177g production through Lu-176, the maximum specific activity is reached in group 26 and is equal to 58.5 kCi/g.

For the scheme of Lu-177g production through Yb-176, the maximum specific activity is reached in group 17 and is equal to 260 Ci/g, the groups advantageous for production are 15–17 and 26

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production, isotopes specific activity cross section group Co-59 Co-60 Lu-177g Lu-176 Yb-176

Link for citing the article: Shaginyan R.A., Korobeynikov V.V., Stogov V.Yu. Study into the dependence of the Co-60 and Lu-177g efficiency production on the energy structure of neutron flux density. Izvestiya vuzov. Yadernaya Energetika. 2023, no. 3, pp. 127-139; DOI: https://doi.org/10.26583/npe.2023.3.11 (in Russian).