S. Borneis et al., X-ray laser spectroscopy at the ESR: a proposed novel tool for the investigation of exotic isotopes, HYPER INTER, 127(1-4), 2000, pp. 537-542
Novel X-ray laser sources driven by short-pulse high power lasers can provi
de intense beams of radiation at fixed energy. In combination with the Dopp
ler-tuning possible at the ESR storage ring, this can be utilized for preci
sion spectroscopy of highly charged ions. The sensitivity should be suffici
ent to apply this technique to lithium-like radioactive ions.