Using semirelativistic distorted-wave Born approximation m et hod, we have calculated direct ionization (DI), excitation autoionization (E A) and resonant excitation double- autoionization (REDA) cross sections of Na- like ions Ti 11+ and Cr 13+ .

• 利用相对论修正扭曲波玻恩近似 ；计算了类钠离子Ti11+ 和Cr13 + 的电子碰撞直接电离 ；激发自电离和共振激发双自电离截面 .