A study on combined effects of stochastic magnetic fluctuations and synchrotron radiation on the production of runaway electrons
2017
The dynamics of relativistic runaway electrons are analyzed using the relativistic Fokker-Planck equation including deceleration due to the synchrotron radiation and radial diffusion loss caused by stochastic magnetic fluctuations (SMFs). SMFs are treated as friction force in [J. Mart��n-Sol��s et al., Phys. Plasmas 6, 3925 (1999)]. However, we think SMFs act as a ���porter��� in configuration space, but not directly affect the runaway electrons (REs) in momentum space. Both critical electric fields for sustainment of the existing REs and for avalanche onset are enhanced, and the modified avalanche growth rate is reduced by the combined effects of SMFs and synchrotron radiation as compared to the case with only synchrotron radiation [P. Aleynikov et al., Phys. Rev. Lett. 114, 155001 (2015)].
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