DYNAMIC SIMULATION OF EROSION AND DEPOSITION OF A TUNGSTEN SURFACE DUE TO HIGH-FLUENCE BOMBARDMENT OF CARBON-IONS IN PLASMAS

Authors
OHYA K KAWATA J HARADA A
Citation
K. Ohya et al., DYNAMIC SIMULATION OF EROSION AND DEPOSITION OF A TUNGSTEN SURFACE DUE TO HIGH-FLUENCE BOMBARDMENT OF CARBON-IONS IN PLASMAS, JPN J A P 1, 35(8), 1996, pp. 4523-4524
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
35
Issue
8
Year of publication
1996
Pages
4523 - 4524
Database
ISI
SICI code
Abstract
The erosion-deposition process of a tungsten surface bombarded by Maxw ellian carbon ions is investigated using a Monte Carlo simulation mode l which combines dynamic composition change in the surface layer with transport of sputtered particles in a scrape-off layer plasma. During ion bombardment at ion temperatures of 50-70eV, a transition from eros ion to deposition is observed without transport in the plasma. With tr ansport, however, only carbon deposition occurs due to redeposition of sputtered carbon atoms.