Transport of hydrocarbon molecules in the edge plasma fusion experiments
The transport of emitted methane molecules has been analyzed with the 3-D Monte Carlo code ERO. A D/XB coefficient is defined and allows a conversion of line-of-sight intensity of the integrated molecular CD band into the methane influx density by multiplication. This coefficient has been calculated for a wide range of plasma parameters. A strong dependance on the sticking probability of the different hydrocarbon molecules to the surface has been observed. The results are discussed in comparison with those obtained from 0D reaction model where the transport is included by defining particle residence times. A calculation for ASDEX-Upgrade using a plasma background generated with the B2-Eirene code is presented.
Bibliographic Reference: Article: Journal of Nuclear Materials, 266-269 (1999), 360-364
Record Number: 199910750 / Last updated on: 1999-05-21
Original language: en
Available languages: en