A 600-keV heavy-ion accelerator equipped with a universal ion source and a magnet capable of separating masses up to uranium was used for beam-foil studies together with a target chamber constructed to fulfill the demands for ion velocities in the energy range of 60–600 keV. The mean lives for singlets and multiplets of Al I through Al III in the wavelength range 1700–5000 Å are reported. The evaluated mean lives of the 4<i>s</i><sup>2</sup><i>S</i> and 3<i>d</i><sup>2</sup><i>D</i> states in Al I agree within 10% with earlier experimental results obtained by the phase-shift method and the level-crossing technique.
© 1969 Optical Society of America
T. ANDERSEN, K. A. JESSEN, and G. SØRENSEN, "Beam-Foil Excitation Studies of Aluminum with a Heavy-Ion Accelerator," J. Opt. Soc. Am. 59, 1197-1201 (1969)