A powerful new approach to the study of particle transport and helium ash confinement in high-temperature fusion plasmas is demonstrated by charge-exchange recombination spectroscopy of in Ohmically heated PDX discharges. Time- and space-resolved measurements of density following a short puff of helium gas into the plasma edge are fitted with use of a diffusive/convective transport model with coefficients and .
- Received 9 November 1983
- Published in the issue dated 13 February 1984
© 1984 The American Physical Society