Characteristics of Plasma Current Start-Up by Transient Coaxial Helicity Injection on HIST
نویسندگان
چکیده
منابع مشابه
Experimental Demonstration of Tokamak Inductive Flux Saving by Transient Coaxial Helicity Injection on NSTX
Discharges initiated by Transient Coaxial Helicity Injection (CHI) in NSTX have attained peak toroidal plasma currents up to 300 kA. When induction from the central solenoid is then applied, these discharges develop up to 300 kA additional current compared to discharges initiated by induction only. CHI initiated discharges in NSTX have achieved 1 MA of plasma current using only 258 mWb of solen...
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Coaxial Helicity Injection (CHI) experiments in the Helicity Injected Spherical Torus (HIST) device have produced discharges with peak plasma currents up to 150 kA and successfully sustained the plasma current for much longer than a resistive decay time. The flow measurements using a Mach probe have shown that the intermittent generation of the flow is correlated to the fluctuation seen on the ...
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Experiments in NSTX have now demonstrated the coupling of toroidal plasmas produced by the technique of Coaxial Helicity Injection (CHI) to inductive sustainment and ramp-up of the toroidal plasma current. In these discharges, the central Ohmic transformer was used to apply an inductive loop voltage to discharges with a toroidal current of about 100 kA created by CHI. The coupled discharges hav...
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ژورنال
عنوان ژورنال: Plasma and Fusion Research
سال: 2016
ISSN: 1880-6821
DOI: 10.1585/pfr.11.1402001