TY  - JOUR
AU  - Rosato, J.
AU  - Marandet, Y.
AU  - Reiter, D.
AU  - Stamm, R.
TI  - Development of a hybrid kinetic-fluid model for line radiation transport in magnetic fusion plasmas
JO  - High energy density physics
VL  - 22
SN  - 1574-1818
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2019-06535
SP  - 73 - 76
PY  - 2017
AB  - We report on a transport model for the Lyman line radiation in optically thick divertor plasma conditions encountered in exhaust systems in magnetic fusion devices. The model is designed to switch automatically between a kinetic and a continuum description according to the plasma conditions and to the spectral range. A kinetic treatment is retained for photons with a large mean free path (line wings), whereas a continuum description of the radiation field is invoked in highly absorbing or scattering regions (core photons). Prototypical calculations of this so-called δf Monte Carlo type of the Lyman α photo-excitation rate in slab geometry are performed as an illustration. The hybrid method is suggested as a candidate for speeding up the kinetic transport codes currently involved in magnetic fusion research for ITER and DEMO divertor (power and particle exhaust system) design.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000397016200014
DO  - DOI:10.1016/j.hedp.2017.02.012
UR  - https://juser.fz-juelich.de/record/867942
ER  -