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Comparison of DT neutron production codes MCUNED, ENEA-JSI source subroutine and DDT
Jozef Stefan Inst, Reactor Phys Dept, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia..
Jozef Stefan Inst, Reactor Phys Dept, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia..
Jozef Stefan Inst, Reactor Phys Dept, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia..
Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England..
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2016 (English)In: Fusion engineering and design, ISSN 0920-3796, E-ISSN 1873-7196, Vol. 109, 164-168 p.Article in journal, Meeting abstract (Refereed) Published
Abstract [en]

As the DT fusion reaction produces neutrons with energies significantly higher than in fission reactors, special fusion-relevant benchmark experiments are often performed using DT neutron generators. However, commonly used Monte Carlo particle transport codes such as MCNP or TRIPOLI cannot be directly used to analyze these experiments since they do not have the capabilities to model the production of DT neutrons. Three of the available approaches to model the DT neutron generator source are the MCUNED code, the ENEA-JSI DT source subroutine and the DDT code. The MCUNED code is an extension of the well-established and validated MCNPX Monte Carlo code. The ENEA-JSI source subroutine was originally prepared for the modelling of the FNG experiments using different versions of the MCNP code (-4, -5, -X) and was later extended to allow the modelling of both DT and DD neutron sources. The DDT code prepares the DT source definition file (SDEF card in MCNP) which can then be used in different versions of the MCNP code. In the paper the methods for the simulation of the DT neutron production used in the codes are briefly described and compared for the case of a simple accelerator-based DT neutron source.

Place, publisher, year, edition, pages
2016. Vol. 109, 164-168 p.
Keyword [en]
Neutron yield, DT neutron source, MCNP, Neutron generator
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:uu:diva-305293DOI: 10.1016/j.fusengdes.2016.03.036ISI: 000382421900029OAI: oai:DiVA.org:uu-305293DiVA: diva2:1038329
Conference
12th International Symposium on Fusion Nuclear Technology (ISFNT), SEP 14-18, 2015, Jeju, SOUTH KOREA
Available from: 2016-10-18 Created: 2016-10-14 Last updated: 2016-10-18Bibliographically approved

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