Generation of a plasma neutron source for Monte Carlo neutron transport calculations in the tokamak JET

Journal Article · Mon Apr 30 00:00:00 EDT 2018 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2018.04.065· OSTI ID:1543447

Štancar, Žiga ^[1]; Gorelenkova, Marina ^[2]; Conroy, Sean ^[3]; Eriksson, Jacob ^[3]; Buchanan, James ^[4]; Snoj, Luka ^[1]

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1. Jožef Stefan Inst., Ljubljana (Slovenia)
2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
3. Uppsala Univ. (Sweden). Dept. of Physics and Astronomy
4. Culham Centre for Fusion Energy, Abingdon, Oxon (United Kingdom)

The connection between plasma physics and neutronics is crucial for the understanding of the operation and performance of modern and future tokamak devices. Neutrons are one of the primary carriers of information on the plasma state and represent the basis for various plasma diagnostic systems as well as measurements of fusion power, tritium breeding studies, evaluations of tokamak structural embrittlement and the heating of water inside the fusion device's walls. It is therefore important that the birth of neutrons in a plasma and their transport from inside the tokamak vessel to the surrounding structures is well characterized. In this paper a methodology for the modelling of the neutron emission on the tokamak JET is presented. The TRANSP code is used to simulate the total neutron production as well as 2D neutron emission profiles for a JET plasma discharge. The spectra of the fusion neutrons are computed using the DRESS code. Finally, the computational results are analysed in an effort to create a plasma neutron source generator, which is to be used for Monte Carlo neutron transport computations.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• Contributing Organization: This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 under grant agreement No. 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The authors acknowledge the funding received from the Slovenian Research Agency in the scope of the project entitled Training of young researchers 1000-14-0106.
• Grant/Contract Number: AC02-09CH11466
• OSTI ID: 1543447
• Journal Information: Fusion Engineering and Design, Vol. 136, Issue Part B; ISSN 0920-3796
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY