S. Voskoboynikov

Narrow peaks in excitation spectrum of alkali spin polarization: non-adiabatic case of spin dynamics

Е. Н. Попов, Andrei Gaidash, Anton Kozubov, S. Voskoboynikov

Abstract We theoretically describe the phenomenon of non-adiabatic spin dynamics, which occurs in a gas cell filled by alkali vapor in the presence of a strong alternating magnetic field and pump light. Steep increase of the spin polarization occurs if the frequency …

ru (code pays fourni par la source)

Super narrow peaks in excitation spectrum of alkali spin polarization: non-adiabatic case of spin dynamics

Е. Н. Попов, Andrei Gaidash, Anton Kozubov, S. Voskoboynikov

We theoretically describe the phenomenon of non-adiabatic spin dynamics, which occurs in a gas cell filled by alkali vapor in presence of a strong alternating magnetic field and pump light. Steep increase of the spin polarization occurs if frequency of the magnetic …

Implementation of SOLPS-ITER code with new Grad–Zhdanov module for D–T mixture

S. O. Makarov, D. Coster, E. Kaveeva, V. Rozhansky et autres

Abstract A new Grad–Zhdanov module is implemented into the SOLPS-ITER code for calculation of the parallel kinetic coefficients. A complete, multi-ion generalization is performed, relaxing the heavy impurity assumption. A JET-like D+T+Ne test simulation is conducted to demonstrate the ability to model …

de, ru, fr (code pays fourni par la source)

SOLPS-ITER modeling of CFETR advanced divertor with Ar and Ne seeding

I. Senichenkov, Rui Ding, P. Molchanov, E. Kaveeva et autres

Abstract The Chinese Fusion Engineering Testing Reactor (CFETR) is a project proposed by the Chinese fusion community to bridge the gap between ITER and a commercial fusion power plant with fusion power up to 1 GW. The mitigation of divertor target heat …

ru, cn (code pays fourni par la source)

Detached regime with highly radiating X‐point: Physics and modelling

I. Senichenkov, E. Kaveeva, V. Rozhansky, Nikita Shtyrkhunov et autres

Abstract A possibility to operate with fully detached targets and highly radiating X‐point was recently demonstrated on ASDEX Upgrade, JET, and DIII‐D with intensive impurity seeding (N, Ne, Ar) and feedback control. Notable feature of such a regime is the radiated power …

ru, de (code pays fourni par la source)

Impact of the improved parallel kinetic coefficients on the helium and neon transport in SOLPS‐ITER for ITER

S. O. Makarov, D. Coster, V. Rozhansky, S. Voskoboynikov et autres

Abstract New Grad–Zhdanov module is implemented in the SOLPS‐ITER code and applied to ITER impurity transport simulations. Significant difference appears in the helium transport due to improved parallel kinetic coefficients. As a result, 30% decrease of the separatrix‐averaged helium relative concentration is …

de, ru, fr (code pays fourni par la source)

Multi-machine SOLPS-ITER comparison of impurity seeded H-mode radiative divertor regimes with metal walls

V. Rozhansky, E. Kaveeva, I. Senichenkov, I. Veselova et autres

Abstract SOLPS-ITER modelling databases of three tokamaks—ASDEX-Upgrade, JET and ITER with fluid drifts activated are compared to understand the dependence of edge plasma performance on machine size and other global parameters. Two medium Z extrinsic radiating impurity species (Ne and N) are …

ru, fr, de, gb (code pays fourni par la source)

High temperature treatment of epitaxial nickel ferrite thin films: The way to bulk-like magnetic properties

А. К. Кавеев, N. S. Sokolov, С.М. Сутурин, Masahiro Sawada et autres

ru, jp (code pays fourni par la source)

Plasma edge simulations including realistic wall geometry with SOLPS-ITER

W. Dekeyser, P. Boerner, S. Voskoboynikov, V.A. Rozhanksy et autres

In plasma edge simulations using the SOLPS-ITER code, the simulated Scrape-Off Layer plasma domain has historically been restricted to magnetic flux surfaces contacting divertor targets at both ends. We present here a newly developed numerical solver for the B2.5 plasma solver in …

be, de, ru, fr (code pays fourni par la source)

Approaching the radiating X-point in SOLPS-ITER modeling of ASDEX Upgrade H-mode discharges

I. Senichenkov, E. Kaveeva, V. Rozhansky, S. Voskoboynikov et autres

Abstract In the present paper the ASDEX Upgrade (AUG) experimental trend of reaching the radiating X-point with nitrogen seeding is reproduced by SOLPS-ITER code modeling. In these experiments the whole divertor region below the X-point is cooled down by the impurity radiation …

ru, de, fr (code pays fourni par la source)

High Performance ITER-baseline Discharges in Deuterium with Nitrogen and Neon-Seeding in the JET-ILW

C. Giroud, S. Brezinsek, R.A. Pitts, A. Huber et autres

de (code pays fourni par la source)

Impurity parallel transport in ITER using improved collisional closure in the SOLPS-ITER code

S. O. Makarov, D. Coster, V. Rozhansky, E. Kaveeva et autres

de (code pays fourni par la source)