Measurements of neutral density profiles using a deuterium Balmer-alpha diagnostic in the C-2 FRC plasma.

@article{Gupta2012MeasurementsON,
  title={Measurements of neutral density profiles using a deuterium Balmer-alpha diagnostic in the C-2 FRC plasma.},
  author={Deepak K. Gupta and Bi Hua Deng and Kurt Knapp and Xuan Sun and M C Thompson},
  journal={The Review of scientific instruments},
  year={2012},
  volume={83 10},
  pages={
          10D534
        }
}
In C-2 field-reversed configuration (FRC) device, low neutral density outside the FRC separatrix is required to minimize the charge exchange loss of fast particles. Titanium gettering is used in C-2 to reduce the wall recycling and keep the neutral density low in plasma edge. The measurements of neutral density radial profile are desirable to understand the plasma recycling and the effects of titanium gettering. These measurements are also needed to study the interaction of neutral beams with… CONTINUE READING
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