Neutral beam driven impurity flow reversal as an impurity control scheme for INTOR
Technical Report
·
OSTI ID:7082815
There is a well-developed impurity transport theory that predicts an outward flow of impurities with neutral beam co-injection, and a greatly enhanced normally inward impurity transport with counter-injection. There is a large experimental data base that qualitatively supports these theoretical predictions. A careful analysis of the experimental data from PLT with tungsten limiter shows an excellent quantitative agreement between the theory and experiment. The highlights of this PLT analysis are reviewed. The computational model is then extrapolated to the INTOR plasma. The calculations indicate that co-injected neutral beam power of the order of 25-100 MW can prevent the penetration of impurities in the central regions of the INTOR plasma.
- Research Organization:
- Georgia Inst. of Tech., Atlanta (USA)
- DOE Contract Number:
- AS05-78ET52025
- OSTI ID:
- 7082815
- Report Number(s):
- GTFR-68; ON: DE87002291
- Country of Publication:
- United States
- Language:
- English
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