Figure 4: Reach of IGLIS for the heaviest elements.

Chart of nuclides showing the current status of the isotopes investigated by optical spectroscopy9. Black squares represent stable or very long-lived isotopes, orange squares indicate the radioactive isotopes/isomers with published spectroscopic information, including those from the present work. In the blow-up of the actinide and heavier mass region, blue (green) squares are isotopes that, based on experimental (calculated) cross-sections, can be produced in sufficient amounts to be studied by the IGLIS technique. A primary beam intensity of 10 pμA, the projected efficiency of 10% and yields of up to 0.1 p.p.s. being stopped in the gas cell are assumed.