title: Role of bremsstrahlung radiation in limiting the energy of runaway electrons in tokamaks.
abstract: 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.
authors.affiliation: Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan. bakhtiar@engr.wisc.edu
authors.forename: M
authors.initials: M
authors.lastname: Bakhtiari
authors.forename: G J
authors.initials: GJ
authors.lastname: Kramer
authors.forename: M
authors.initials: M
authors.lastname: Takechi
authors.forename: H
authors.initials: H
authors.lastname: Tamai
authors.forename: Y
authors.initials: Y
authors.lastname: Miura
authors.forename: Y
authors.initials: Y
authors.lastname: Kusama
authors.forename: Y
authors.initials: Y
authors.lastname: Kamada