It is shown that a steepening of the radial plasma pressure profile leads to a decrease in the critical value of beta,above which,small-scale balloon-type perturbations in a mirror trap become unstable.This may mean t...It is shown that a steepening of the radial plasma pressure profile leads to a decrease in the critical value of beta,above which,small-scale balloon-type perturbations in a mirror trap become unstable.This may mean that small-scale ballooning instability leads to a smoothing of the radial plasma profile.The critical beta values for the real magnetic field of the gas-dynamic trap and various plasma pressure radial profiles was also calculated.For a plasma with a parabolic profile critical beta is evaluated at the level of 0.72.A previous theoretical prediction for this trap was almost two times lower than maximal beta 0.6 achieved experimentally.展开更多
基金financially supported by the Ministry of Education and Science of the Russian Federationsupported by Chinese Academy of Sciences Presidents International Fellowship Initiative(PIFI)under Grant No.2022VMA0007Chinese Academy of Sciences International Partnership Program under Grant No.116134KYSB20200001。
文摘It is shown that a steepening of the radial plasma pressure profile leads to a decrease in the critical value of beta,above which,small-scale balloon-type perturbations in a mirror trap become unstable.This may mean that small-scale ballooning instability leads to a smoothing of the radial plasma profile.The critical beta values for the real magnetic field of the gas-dynamic trap and various plasma pressure radial profiles was also calculated.For a plasma with a parabolic profile critical beta is evaluated at the level of 0.72.A previous theoretical prediction for this trap was almost two times lower than maximal beta 0.6 achieved experimentally.
