Dynamic Monte-Carlo modeling of hydrogen isotope reactive diffusive transport in porous graphite
Abstract
An equal mixture of deuterium and tritium will be the fuel used in a fusion reactor. It is important to study the recycling and mixing of these hydrogen isotopes in graphite from several points of view: (i) impact on the ratio of deuterium to tritium in a reactor, (ii) continued use of graphite as a first wall and divertor material, and (iii) reaction with carbon atoms and the transport of hydrocarbons will provide insight into chemical erosion. Dynamic Monte-Carlo techniques are used to study the reactive-diffusive transport of hydrogen isotopes and interstitial carbon atoms in a 3-D porous graphite structure irradiated with hydrogen and deuterium and is compared with published experimental results for hydrogen re-emission and isotope exchange.
- Publication:
-
Journal of Nuclear Materials
- Pub Date:
- August 2007
- DOI:
- 10.1016/j.jnucmat.2007.03.226
- Bibcode:
- 2007JNuM..367.1238S