Synchrotron loss in inhomogeneous tokamak plasmas
Synchrotron emission in a tokamak configuration with inhomogeneous plasma parameters was considered, in order to investigate the effects of the temperature profile and vertical elongation on the radiation loss. Using the numerical solution of the transfer equation for ITER-like plasma parameters, several new results on the radiated energy in a Maxwellian plasma have been derived. In particular: (i) synchrotron loss is profile dependent, namely, at constant average thermal energy, the emitted radiation increases with the peak temperature; (ii) an analytical formula of the global loss in inhomogeneous tokamak plasmas with arbitrary vertical elongation is established; (iii) the maximum of the frequency emission spectrum is a linear function of the volume average temperature; (iv) a passive diagnostic of the electron temperature is proposed.
Bibliographic Reference: Paper presented: 14th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Würzburg (DE), September 30 - October 7, 1992
Availability: Available from (1) as Paper EN 37030 ORA
Record Number: 199211518 / Last updated on: 1994-11-29
Original language: en
Available languages: en