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Kos B, Radulescu G, Grove R, Villari R, Batistoni P. Comprehensive Analysis of Streaming and Shutdown Dose Rate Experiments at JET with ORNL Fusion Neutronics Workflows. FUSION SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1080/15361055.2022.2129182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Bor Kos
- Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37830
| | - Georgeta Radulescu
- Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37830
| | - Robert Grove
- Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge, Tennessee 37830
| | - Rosaria Villari
- ENEA Frascati, Via Enrico Fermi, 45, Frascati RM, 00044, Italy
| | - Paola Batistoni
- ENEA Frascati, Via Enrico Fermi, 45, Frascati RM, 00044, Italy
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Benchmarking of emergent radiation transport codes for fusion neutronics applications. FUSION ENGINEERING AND DESIGN 2022. [DOI: 10.1016/j.fusengdes.2022.113197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Žohar A, Lengar I, Batistoni P, Conroy S, Čufar A, Kierepko R, Kos B, Loreti S, Mietelski JW, Nobs CR, Packer LW, Pillon M, Radulović V, Savva MI, Snoj L, Stamatelatos IE, Štancar Ž, Vasilopoulou T, Wójcik-Gargula A. Long Term Neutron Activation in JET DD Operation. EPJ WEB OF CONFERENCES 2021. [DOI: 10.1051/epjconf/202125303005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the 2019 C38 Deuterium-Deuterium campaign at JET several different ITER-relevant materials and dosimetry foils were irradiated in a specially designed long-term irradiation station located inside the vacuum vessel with the purpose of testing the activation of ITER materials by fusion neutrons. The samples were exposed to a neutron fluence of 1.9E14 n/cm2 during JET discharges performed in the experimental campaign over a period of 5 months. Gamma ray spectroscopy measurements were performed on irradiated samples to determine the activation of different long-lived isotopes in the samples. Monte Carlo computational analysis was performed to support the experiment by using the measured neutron yield and irradiation time. In this paper we focus on the computational analysis of the dosimetry foils that are used in order to measure the local neutron energy spectrum and flux. The foils were chosen to cover different neutron energies: thus Yttrium and some of the Nickel and Cobalt reactions were used to determine the Deuterium-Tritium fusion fraction, while Scandium and Iron and some of the Nickel and Cobalt reactions were used for comparison of the computed activity with the experimental measurements. The obtained C/E values show a reasonably good agreement between calculated and measured activity, thus validating the computational methodology and providing the basis for the analysis of the ITER-relevant materials and future experiments performed at JET in the Deuterium-Tritium campaign.
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