Speaker
Stanislav Serov
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P4.1012.pdf
ITER plasma spectra modelling for charge exchange recombination
spectroscopy
S.V. Serov1 , S.N. Tugarinov1 , M. von Hellermann2
1 Institution "Project Center ITER", Moscow, Russia
2 ITER Organization, St. Paul-lez-Durance, France
One of the primary methods of fusion plasma diagnostics is charge exchange recombination
spectroscopy [1]. The CXRS diagnostics is widely used at many modern tokamaks to measure
ion temperature, ion density, toroidal and poloidal plasma rotation velocities. CXRS will be one
of the most important diagnostics at the ITER tokamak, as it would be used to measure main
plasma parameters determining the efficiency of the fusion reaction.
This work describes CXRS-
Edge diagnostics development
for ITER. The CXRS spectra
modelling for ITER tokamak is
considered. The main principles
of spectra modelling in presence
of the diagnostic neutral beam are
considered. Simulation of Spec-
tra code [2], created specially
for CXRS modelling is described.
Spectral profiles, calculated for
different ITER scenarios are pre-
sented. Figure 1 shows an exam- Figure 1: Modelled HeII and BeIV spectrum for ITER CXRS-
ple of modelled HeII and BeIV Edge. It is a superposion of active HeII CX line, passive HeII CX
spectrum for 0.5 minor radius. line, edge lines and BeIV active lines.
The main challanges of CXRS
modelling for ITER are described. It is shown that CXRS-Edge diagnostic on ITER tokamak
will allow performing an ion temperature, impurities concentration, toroidal and poloidal rota-
tion velocity measurements in accordance with ITER requirements.
References
[1] R. Fonck et al., Physical Review A, 29, 6 (1984)
[2] M.von Hellermann et al., Physica Scripta, Volume 2005, T120, 19
