QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA

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	QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA
	BRAVENEC, RV ; ROSS, DW ; SCHOCH, PM ; BROWER, DL ; HEARD, JW ; HICKOK, RL ; TERRY, PW ; WOOTTON, AJ ; YANG, XZ
刊名	NUCLEAR FUSION
	1991
卷号	31 期号:4 页码:687
关键词	LASER SCATTERING TOKAMAK PLASMA MICROTURBULENCE CONFINEMENT TURBULENCE EDGE TEXT
ISSN号	0029-5515
通讯作者	BRAVENEC, RV (reprint author), UNIV TEXAS,FUS RES CTR,AUSTIN,TX 78712, USA.
中文摘要	Expressions for the quasi-linear electrostatic electron particle and heat fluxes are derived in the wave frequency and electron collisionality regimes appropriate to the interior of the TEXT tokamak. These are expressed in terms of moments of the density fluctuation spectrum accounting for poloidal plasma rotation. Minimal assumptions are made as to the origin of the turbulence. The fluxes are then evaluated for an appropriate discharge condition on TEXT, using the density fluctuation frequency spectrum and equilibrium plasma potential measured by a heavy ion beam probe (HIBP). These are compared with the experimental fluxes for two measurements of the normalized rms poloidal wave number k-theta,rms-rho-s. For k-theta,rms-rho-s almost-equal-to 0.1, which is an upper bound of the HIBP two-point phase shift measurements, the electrostatic fluxes are negligible and the rms frequency of the fluctuations is much larger than the Doppler shifted electron diamagnetic drift frequency. However, for k-theta,rms-rho-s almost-equal-to 0.3, as supported by far-infrared (FIR) scattering and as expected for drift waves, the electrostatic fluxes are sufficient to account for the observed fluxes in the region of low collisionality. In addition, the rms frequency (consistent with FIR scattering) agrees with the Doppler shifted electron diamagnetic drift frequency. However, the computed fluxes fall increasingly short of the observed fluxes with increasing radius.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/51790]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	BRAVENEC, RV,ROSS, DW,SCHOCH, PM,et al. QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA[J]. NUCLEAR FUSION,1991,31(4):687.
APA	BRAVENEC, RV.,ROSS, DW.,SCHOCH, PM.,BROWER, DL.,HEARD, JW.,...&YANG, XZ.(1991).QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA.NUCLEAR FUSION,31(4),687.
MLA	BRAVENEC, RV,et al."QUASI-LINEAR TRANSPORT INFERRED FROM DENSITY FLUCTUATION SPECTRA".NUCLEAR FUSION 31.4(1991):687.