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Activation inventories after exposure to dd/dt neutrons in safety analysis of nuclear fusion installations
Lithuanian Energy Inst, Lab Nucl Installat Safety, Breslaujos Str 3, LT-44403 Kaunas, Lithuania..ORCID iD: 0000-0002-4996-4834
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.ORCID iD: 0000-0002-9546-4494
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Number of Authors: 12262018 (English)In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 180, no 1-4, p. 125-128Article in journal (Refereed) Published
Abstract [en]

Irradiations with 14 MeV fusion neutrons are planned at Joint European Torus (JET) in DT operations with the objective to validate the calculation of the activation of structural materials in functional materials expected in ITER and fusion plants. This study describes the activation and dose rate calculations performed for materials irradiated throughout the DT plasma operation during which the samples of real fusion materials are exposed to 14 MeV neutrons inside the JET vacuum vessel. Preparatory activities are in progress during the current DD operations with dosimetry foils to measure the local neutron fluence and spectrum at the sample irradiation position. The materials included those used in the manufacturing of the main in-vessel components, such as ITER-grade W, Be, CuCrZr, 316 L(N) and the functional materials used in diagnostics and heating systems. The neutron-induced activities and dose rates at shutdown were calculated by the FISPACT code, using the neutron fluxes and spectra that were provided by the preceding MCNP neutron transport calculations.

Place, publisher, year, edition, pages
OXFORD UNIV PRESS , 2018. Vol. 180, no 1-4, p. 125-128
National Category
Fusion, Plasma and Space Physics
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URN: urn:nbn:se:kth:diva-270444DOI: 10.1093/rpd/ncx262ISI: 000440983000027PubMedID: 29186569Scopus ID: 2-s2.0-85055094381OAI: oai:DiVA.org:kth-270444DiVA, id: diva2:1424587
Conference
13th Symposium on Neutron and Ion Dosimetry (NEUDOS), MAY 13-19, 2017, Polish Acad Sci, Inst Nucl Phys, Krakow, POLAND
Note

QC 20200417

Available from: 2020-04-17 Created: 2020-04-17 Last updated: 2020-04-17Bibliographically approved

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Stankunas, GediminasBergsåker, HenricBykov, IgorFrassinetti, LorenzoGarcia-Carrasco, AlvaroHellsten, TorbjörnJohnson, ThomasMenmuir, SheenaPetersson, PerRachlew, ElisabethRatynskaia, SvetlanaRubel, MarekStefanikova, EsteraStröm, PetterTholerus, EmmiTolias, PanagiotisOlivares, Pablo VallejosWeckmann, ArminZhou, Yushun
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