University of Washington, Seattle, Washington, USA.
Phys Rev Lett. 2010 Mar 5;104(9):095003. doi: 10.1103/PhysRevLett.104.095003.
Transient coaxial helicity injection (CHI) started discharges in the National Spherical Torus Experiment (NSTX) have attained peak currents up to 300 kA and when coupled to induction, it has produced up to 200 kA additional current over inductive-only operation. CHI in NSTX has shown to be energetically quite efficient, producing a plasma current of about 10 A/J of capacitor bank energy. In addition, for the first time, the CHI-produced toroidal current that couples to induction continues to increase with the energy supplied by the CHI power supply at otherwise similar values of the injector flux, indicating the potential for substantial current generation capability by CHI in NSTX and in future toroidal devices.
在国家球形托卡马克实验装置（NSTX）中，瞬态同轴螺旋度注入（CHI）引发的放电可达到高达 300kA 的峰值电流，而当与感应耦合时，它在感应操作的基础上额外产生了高达 200kA 的电流。NSTX 中的 CHI 已被证明具有相当高的能量效率，产生的等离子体电流约为 10A/J 的电容器组能量。此外，这是首次证明，与感应耦合的 CHI 产生的环形电流随着 CHI 电源提供的能量而继续增加，而注入器通量的其他值保持相似，这表明 CHI 在 NSTX 中和未来的环形装置中具有产生大量电流的潜力。
