Radial density profiles of highly charged carbon ions in TEXTOR
First results of the application of lithium-beam activated charge exchange spectroscopy to a tokamak edge plasma are reported. Radial density profiles of several highly ionised states of carbon (C(4+) to C(6+)) were measured in the outmost 20 cm of ohmically heated TEXTOR discharges. Based on these profiles, the transport of carbon released from limiter surfaces was studied by applying a one-dimensional steady-state particle balance equation, which contains convective and diffusive parts. To explain the experimentally measured profiles within the model used, an additional outward convection velocity has to be assumed.
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 176 & 177 (1990) pp. 398-403
Record Number: 199110871 / Last updated on: 1994-12-02
Original language: en
Available languages: en