STUDY OF STRUCTURE AND DYNAMICS OF SHIELDING LAYER FOR INCLINED INCIDENCE OF PLASMA STREAM AT MK-200 FACILITY

Authors
ARKHIPOV NI BAKHTIN VP KURKIN SM SAFRONOV VM TOPORKOV DA VASENIN SG WUERZ H ZHITLUKHIN AM
Citation
Ni. Arkhipov et al., STUDY OF STRUCTURE AND DYNAMICS OF SHIELDING LAYER FOR INCLINED INCIDENCE OF PLASMA STREAM AT MK-200 FACILITY, Journal of nuclear materials, 237, 1996, pp. 767-770
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Mining & Mineral Processing","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
237
Year of publication
1996
Part
A
Pages
767 - 770
Database
ISI
SICI code
0022-3115(1996)237:<767:SOSADO>2.0.ZU;2-A
Abstract
Results of the first disruption simulation experiment under plasma str eam power density of 30-40 MW/cm(2) are presented. POGO and RGT graphi te were exposed to perpendicular and inclined incidence of hydrogen pl asma stream with energy density up to 1.4 M/cm(2), directed ion energy of 2-3 keV in the presence of magnetic field up to 3.3 T. Optical int erferometry and soft X-ray spectroscopy were employed for analysis of target plasma. Contrary to well studied perpendicular plasma impact th e inclined plasma incidence results in a drift of target plasma along the sample surface. This restricts the plasma shield effect and increa ses the erosion rate.