ANALYSIS OF LUMINESCENCE SIGNALS OBSERVED DURING PELLET INJECTION

被引:9
作者
BALDZUHN, J
SANDMANN, W
机构
[1] EURATOM Assoc., Max-Planck-Inst. fur Plasmaphys., Garching bei Munchen
关键词
D O I
10.1088/0741-3335/35/10/005
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We report on a numerical analysis of luminescence signals observed during pellet injection into magnetically confined plasmas. Data from the ASDEX tokamak and the WENDELSTEIN W7-AS advanced stellarator are considered here in the form of a comparative study. We investigate how far the safety factor q and other plasma parameters influence the luminescence signals. Thus, we try to clarify the validity of the so-called neutral gas shielding model and an extension of it that takes into account the influence of resonant surfaces on the ablation process. It is shown that resonant values play only a minor role in the appearance of minima in the luminescence signals.
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收藏
页码:1413 / 1431
页数:19
相关论文
共 28 条
[1]   CENTRIFUGAL PELLET INJECTOR WITH DIRECT SOLID-DEUTERIUM FEED [J].
AMENDA, W ;
LANG, RS .
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1986, 19 (11) :970-975
[2]  
[Anonymous], 1968, SPECTRAL ANAL ITS AP
[3]   PELLET FUELING DEPOSITION MEASUREMENTS ON JET AND TFTR [J].
BAYLOR, LR ;
SCHMIDT, GL ;
HOULBERG, WA ;
MILORA, SL ;
GOWERS, CW ;
BAILEY, WP ;
GADEBERG, M ;
KUPSCHUS, P ;
TAGLE, JA ;
OWENS, DK ;
MANSFIELD, DK ;
PARK, HK .
NUCLEAR FUSION, 1992, 32 (12) :2177-2187
[4]   CORRELATION OF PELLET PENETRATION DEPTHS ON ASDEX FOR OHMIC AND AUXILIARY HEATED DISCHARGES [J].
BUCHL, K ;
VLASES, GC ;
SANDMANN, W ;
LANG, R .
NUCLEAR FUSION, 1987, 27 (11) :1939-1945
[5]  
BUCHL K, 1983, 9TH P S ENG PROBL FU, V2, P1725
[6]  
BUCHL K, 1986, IPP1238 REP
[7]   DETERMINATION OF THE SAFETY FACTOR PROFILE IN TORE SUPRA FROM THE LARGEST STRIATIONS OBSERVED DURING PELLET ABLATION [J].
DUBOIS, MA ;
SABOT, R ;
PEGOURIE, B ;
DRAWIN, HW ;
GERAUD, A .
NUCLEAR FUSION, 1992, 32 (11) :1935-1940
[8]  
Durst R. D., 1988, THESIS U TEXAS AUSTI
[9]   Q-PROFILE MEASUREMENT IN TOKAMAKS USING FUELING PELLETS [J].
DURST, RD ;
PHILLIPS, PE ;
ROWAN, WL .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1988, 59 (08) :1623-1625
[10]   DETERMINATION OF THE SHEAR ON THE Q = 1 SURFACE OF THE JET TOKAMAK [J].
GILL, RD ;
EDWARDS, AW ;
WELLER, A .
NUCLEAR FUSION, 1989, 29 (05) :821-825