Metastable ion production in the RCE process

Metastable ion production under resonant coherent excitation (RCE) of channeled ions in crystals is considered theoretically together with other characteristics of the process within the unified density matrix approach [V.V. Balashov, I.V. Bodrenko, Moscow State University Bulletin, Physics and Astronomy, No. 1 (2001) 27]. Calculations for hydrogen-like and helium-like ions in gold crystal show that the resonance yield of their long-living 2s:2S and 1s2s:1S states is expected to be of the same order of magnitude as that of the characteristic X-ray radiation from their dipole excitations.