Back to Search
Start Over
Full‐torus impurity transport simulation for optimizing plasma discharge operation using a multi‐species impurity powder dropper in the large helical device
- Source :
- Special Issue: 17th International Workshop on Plasma Edge Theory in Fusion Devices, August 19-21, 2019, University California San Diego, La Jolla, USA, Funding information Japan Society for the Promotion of Science, 16H04619; 16K18340; US Department of Energy, DE-FG02-06ER54852
- Publication Year :
- 2019
- Publisher :
- Wiley, 2019.
-
Abstract
- The transport of impurities supplied by a multi-species impurity powder dropper (IPD) in the large helical device (LHD) is investigated using a three-dimensional peripheral plasma fluid code (EMC3-EIRENE) coupled with a dust transport simulation code (DUSTT). The trajectories of impurity powder particles (Boron, Carbon, Iron, and Tungsten) dropped from the IPD and the impurity transport in the peripheral plasma are studied in a full-torus geometry. The simulation reveals an appropriate size of the impurity powder particles and an optimum operational range of the dust drop rates for investigating the impurity transport without inducing radiation collapse. The simulation also predicts a favourable plasma discharge condition for wall conditioning (boronization) using the IPD in order to deposit boron to high plasma flux and neutral particle density areas in the divertor region in the inboard side of the torus.
- Subjects :
- Imagination
Thesaurus (information retrieval)
EMC3-EIRENE
Chemical substance
Materials science
media_common.quotation_subject
impurity powder dropper
Torus
Plasma
Condensed Matter Physics
DUSTT
Computational physics
Search engine
Large Helical Device
ergodic layer
Physics::Plasma Physics
Impurity
Condensed Matter::Superconductivity
Condensed Matter::Strongly Correlated Electrons
LHD
media_common
Subjects
Details
- ISSN :
- 15213986 and 08631042
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Contributions to Plasma Physics
- Accession number :
- edsair.doi.dedup.....7084c93174845ac8751c1e5337294040