In tokamak plasma radiation diagnostics,an emissivity profile derived from line integrated radiation measurement data with Abel inversion or tomographic analysis is averaged over a poloidal cross section of the plasma chord.

• 在托卡马克等离子体辐射诊断中，通过阿贝尔反演或层析分析从线积分辐射率中得到的空间分布，是辐射率在束线宽度范围内的平均值的分布。