首页   按字顺浏览 期刊浏览 卷期浏览 Another look at experimental evidence for ion temperature gradient driven turbulence in...
Another look at experimental evidence for ion temperature gradient driven turbulence in tokamaks

 

作者: David L. Brower,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1994)
卷期: Volume 284, issue 1  

页码: 165-187

 

ISSN:0094-243X

 

年代: 1994

 

DOI:10.1063/1.44525

 

出版商: AIP

 

数据来源: AIP

 

摘要:

For high‐density ohmic discharges in the TEXT tokamak, a distinct ion mode (i.e., density fluctuations propagating in the ion diamagnetic drift direction) is observed in the microturbulence spectra. The magnitude and spectral characteristics of the mode are identified. Onset of the ion feature occurs at plasma densities where a clear saturation is evident in the global energy confinement time. By injecting pellets, a high‐density plasma is created in which the density profile is sharply peaked. Under these conditions the ion feature in the fluctuation spectra is suppressed. Possible connection between this experimentally observed ion mode and the theoretically predicted properties of the ion‐temperature‐gradient‐driven turbulence is explored. Experimental evidence from other devices is also discussed along with a critical evaluation of interpretation issues.

 

点击下载:  PDF (773KB)



返 回