Comparison of Sawtooth Phenomenology on TFTR and DIII-D [electronic resource]

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Bibliographic Details
Online Access: Online Access
Corporate Author: Princeton University. Plasma Physics Laboratory (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Washington, D.C : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1999.
Subjects:

MARC

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245 0 0 |a Comparison of Sawtooth Phenomenology on TFTR and DIII-D  |h [electronic resource] 
260 |a Washington, D.C :  |b United States. Dept. of Energy. Office of Energy Research ;  |a Oak Ridge, Tenn. :  |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,   |c 1999. 
300 |a 4 pages. 
336 |a text  |b txt  |2 rdacontent. 
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500 |a Published through the Information Bridge: DOE Scientific and Technical Information. 
500 |a 06/01/1999. 
500 |a "Cfpaper-4034" 
500 |a European Physical Society, Maastricht (NL), 06/14/1999--06/18/1999. 
500 |a M. Austin; E. Fredrickson; J. Manickam; B. Rice; R. Groebner <085>USDOE Office of Energy  
520 3 |a An experiment to study sawtooth phenomena and to find the threshold for sawtooth stabilization with neutral beam injection heating, as was commonly observed on TFTR, has been done on DIII-D. In the experiments, with co-tangential neutral beam injection at powers of up to 13MW, the sawtooth period was observed to increase to of order 250 msec. Stabilization of the sawteeth for the length of the high power NBI (0.5-0.8 sec) was not observed. The sawtooth characteristics were studied with fast electron temperature (ECE) and soft x-ray diagnostics. Fast, 2 msec interval, measurements were made of the ion temperature evolution following the sawtooth to document the ion heat pulse characteristics. These data show that the ion heat pulse does not exhibit the very fast, ''ballistic'' behavior seen for the electrons. The current profile and other equilibrium profiles were measured on slower time scales. These results are compared to the data from similar studies carried out on TFTR. 
536 |b AC02-76CH03073. 
650 7 |a Tftr Tokamak.  |2 local. 
650 7 |a Doublet-3 Device.  |2 local. 
650 7 |a Sawtooth Oscillations.  |2 local. 
650 7 |a Neutral Atom Beam Injection.  |2 local. 
650 7 |a Beam Injection Heating.  |2 local. 
650 7 |a Electron Temperature.  |2 local. 
650 7 |a Ion Temperature.  |2 local. 
650 7 |a Stabilization.  |2 local. 
650 7 |a Plasma Physics And Fusion Technology.  |2 edbsc. 
710 2 |a Princeton University.  |b Plasma Physics Laboratory.  |4 res. 
710 1 |a United States.  |b Department of Energy.  |b Office of Energy Research.  |4 spn. 
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