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Role of Bremsstrahlung Radiation in Limiting the Energy of Runaway Electrons in Tokamaks

2005; American Physical Society; Volume: 94; Issue: 21 Linguagem: Inglês

10.1103/physrevlett.94.215003

1092-0145

M. Bakhtiari, G. Krämer, M. Takechi, H. Tamai, Y. Miura, Y. Kusama, Y. Kamada,

Ionosphere and magnetosphere dynamics

Bremsstrahlung radiation of runaway electrons is found to be an energy limit for runaway electrons in tokamaks. The minimum and maximum energy of runaway electron beams is shown to be limited by collisions and bremsstrahlung radiation, respectively. It is also found that a massive injection of a high-Z gas such as xenon can terminate a disruption-generated runaway current before the runaway electrons hit the walls.