Photoionisation of Be-like and Li-like atomic oxygen{\it K}-shell photoionisation of O${}^{4+}$ and O${}^{5+}$ ions : experiment and theory

B. M. McLaughlin, J. -M. Bizau, D. Cubaynes +6

Absolute cross sections for the {\it K}-shell photoionisation of Be-like (O${}^{4+}$) and Li-like (O${}^{5+}$) atomic oxygen ions were measured for the first time (in their respective…