PHOTOIONIZATION FOR THE EXCITED $1s^22s2p~^{1,3}P$ STATES OF ATOMIC Be Dae-Soung Kim$^{\dag}$, Young Soon Kim$^{\ddag}$ and Steven T. Manson$^{\ast}$ $^{\dag}$Dept. of OIS, Yongwol Inst. of Tech, Yongwol, Kangwon-Do 230-800, Korea $^{\ddag}$Dept. of Physics, Myongji University, Yongin, Kyongki-Do 449-728, Korea $^{\ast}$Dept. of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA A theoretical study of the photoionization of the excited $1s^22s2p~^{1,3}P$ states of atomic Be has been carried out using the variational R-matrix method. With many interesting properties of resonance series, the calculated results show that the cross section for $^3P$ state is much larger than that for $^1P$ state.