The first observation of the hot ion mode at the Globus-M2 spherical tokamak. (1st October 2022)

• Record Type: Journal Article
• Authors: Kurskiev, G.S.; Miroshnikov, I.V.; Sakharov, N.V.; Gusev, V.K.; Petrov, Yu.V.; Minaev, V.B.; Balachenkov, I.M.; Bakharev, N.N.; Chernyshev, F.V.; Goryainov, V.Yu.; Kavin, A.A.; Khromov, N.A.; Kiselev, E.O.; Krikunov, S.V.; Lobanov, K.M.; Melnik, A.D.; Novokhatskii, A.N.; Filippov, S.V.; Zhiltsov, N.S.; Mineev, A.B.; Mukhin, E.E.; Patrov, M.I.; Petrov, A.V.; Ponomarenko, A.M.; Solokha, V.V.; Shulyatiev, K.D.; Shchegolev, P.B.; Skrekel, O.M.; Telnova, A.Yu.; Tkachenko, E.E.; Tukhmeneva, E.A.; Tokarev, V.A.; Tolstyakov, S.Yu.; Varfolomeev, V.I.; Voronin, A.V.; Yashin, A.Yu.; Solovey, V.A.; Zhilin, E.G.;
• Is Part Of: Nuclear fusion. Volume 62:Number 10(2022)
• Publication Date: 2022-10-01
• Subjects: spherical tokamak -- energy confinement -- neutral beam injection -- hot ion mode; Nuclear fusion -- Periodicals; 621.48405
• DOI: 10.1088/1741-4326/ac881d
• Languages: English
• ISSNs: 0029-5515

Abstract

Abstract: Hot ion mode was recently achieved at the Globus-M2 spherical tokamak when the toroidal magnetic field was as high as 0.9 T and plasma current 0.35 MA. The injection of two neutral beams with a total power of 0.7 MW and an energy of 30 keV into a plasma with major radius 0.36 m and minor radius 0.22 m (aspect ratio 1.6) made it possible to heat the plasma ions up to 4 keV, while electron density in the plasma center was as high as 8 × 10 19 m −3 . The achievement of high temperatures became possible due to the good thermal insulation of the plasma.