Extension of the analysis of Ni IX
The spectrum of eight times ionised nickel, Ni IX, was photographed in the 100-170 Å wavelength interval. In this region 80 lines were identified as transitions from the 3p63d2 ground configuration to the mixed 3p53d3 + 3p63d4p configurations and 35 lines were identified as 3p63d2 - 3p63d4f transitions. All 9 levels of the 3p63d2 configuration and all 12 levels of the 3p63d4p configuration have be
