Observation of Short Icrf Waves in Microtor/Macrotor

Taylor, Robert J.; James, B. W.; Jin, S.X.; Lee, P.; Luhmann, Neville C.; Morales, G. J.; Park, H.; Peebles, W. A.; Xu, Yongjian; Yu, Cheng‐Wei

doi:10.1016/b978-1-4832-8428-6.50038-2

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…The ISX-B point is a lower limit since the confinement time is much longer than the length of the discharge. [196]. The electrons remain well confined after the gas puff is turned off, central Ar VIII ions are trapped, and recycling of argon to the edge is inhibited.…”

Section: Fig49 (A) Experimental Line-integrated Time Histories Of Sil...mentioning

confidence: 99%

“…these data is deferred to Subsection 4.2, but it is useful to illustrate direct experimental evidence that radial electric fields can affect the impurity confinement. Taylor has performed a series of experiments to examine this point [196] by injecting electrons into the MACROTOR tokamak to create a potential well.…”

Section: Fig52 (A) Response Of 'Hard-filtered'x-ray Detectors Showing...mentioning

confidence: 99%

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Impurities in tokamaks

Isler

1984

Nucl. Fusion

181

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Impurities continue to be a concern for future fusion devices, and ongoing efforts are made to study their generation, confinement, and control. Techniques for analysis of concentrations, power losses, and confinement of impurities are surveyed, and experimental examples illustrating typical observations in tokamak plasmas are presented. The use of impurities for diagnosing plasma properties is outlined briefly.

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Section: Fig49 (A) Experimental Line-integrated Time Histories Of Sil...mentioning

confidence: 99%

Section: Fig52 (A) Response Of 'Hard-filtered'x-ray Detectors Showing...mentioning

confidence: 99%

Impurities in tokamaks

Isler

1984

Nucl. Fusion

181

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“…The potential between adjacent magnetic field surfaces near, but inside, the wall limiter was modified by cold electron injection from tungsten filaments [19]. The electron conductivity between magnetic surfaces was determined in a way similar to that in previous experiments on a levitron [20].…”

Section: Effects Of Radial Electric Fields On Particle Transportmentioning

confidence: 99%

Macrotor physics and technology results

Taylor¹

1985

Nucl. Fusion

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The fusion research result in Macrotor has been focused on the basic issues of impurity generation (O, C), the role of the radial electric field in particle and energy transport, magnetic turbulence, particle pumping with a limiter, and the development of a large-area ICRF coupler for phased arrays for current drive and plasma heating. The total impurity line radiation has been reduced below the value contributed by the hydrogen edge radiation in ohmically heated plasmas. In RF-heated discharges, edge electron heating and the corresponding influx of impurities have been reduced by k-parallel shaping using large-area phased ICRF couplers. The Faraday shields have been used as limiters, and are used to remove the plasma heat. Current drive due to the lower hybrid fast wave has been observed with these couplers.

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Observation of Short Icrf Waves in Microtor/Macrotor

Cited by 2 publications

References 2 publications

Impurities in tokamaks

Impurities in tokamaks

Macrotor physics and technology results

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