Article
Dose rates and specific activities of copper based materials irradiated during the TT plasma operation at JET
Author/s | Tidikas, Andrius
Breidokaite, Simona Slavickas, Andrius Stankunas, Gediminas Jet Contributors García Muñoz, Manuel Viezzer, Eleonora |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2020 |
Deposit Date | 2023-11-03 |
Published in |
|
Abstract | Before deuterium-tritium (DTE2), a new tritium campaign (TT) with the objective to validate the activities, dose
rates for selected materials and OLTIS container components, as resulting from neutron irradiation at ... Before deuterium-tritium (DTE2), a new tritium campaign (TT) with the objective to validate the activities, dose rates for selected materials and OLTIS container components, as resulting from neutron irradiation at Joint European Torus (JET), is planned. This paper describes the activation and dose rate calculation performed for copper based materials irradiated throughout the foreseen TT plasma operation. Preparatory experiments and calculations are in progress for TT campaign to measure neutron flux spectrum at the irradiation position using dosimetry foils. In addition, the materials to be considered for irradiation during the TT campaign of the OLTIS were identified and analyzed in this study: Al-Bronze and CuCrZr. The neutron-induced activities and dose rates at shutdown were calculated by activation inventory code FISPACT-2010 using the neutron fluxes and spectra provided by the detailed MCNP5 neutron transport calculations. After the irradiation, the activities and dose rates are calculated at several cooling times after the end of irradiation. Highest dose rates the end of irradiation are attributed to Cu-64 radionuclide. Co-58 and Co-60 are the most dominant radionuclides during intermediate and long cooling periods. Highest activities are ascribed to Cu-64 at the beginning and Ni-63 at the end of investigation time. |
Funding agencies | Comunidad Europea de la Energía Atómica. EURATOM. U.E. |
Project ID. | EURATOM - 2014-2018 y 2019-2020 - 633053 |
Citation | Tidikas, A., Breidokaite, S., Slavickas, A., Stankunas, G., Jet Contributors, , García Muñoz, M. y Viezzer, E. (2020). Dose rates and specific activities of copper based materials irradiated during the TT plasma operation at JET. Nuclear Materials and Energy, 22, 100723. https://doi.org/10.1016/j.nme.2019.100723. |
Files | Size | Format | View | Description |
---|---|---|---|---|
1-s2.0-S2352179119300687-main.pdf | 1.715Mb | [PDF] | View/ | |