Two - photon decay of the ls 2 s ISO state in 36 Kr 34 + produced by resonant transfer and excitation
نویسنده
چکیده
The doubly exci ted 2s2p 1 P 1 level of Kr + populated via resonant transfer and excitation (RTE) feeds selectively the metastable ls2s 1S0 state which can only decay via sirnultaneous emission of two photons to the ground state ls2 1So. X-rayIX-ray coincidenee measurements in heavy ionatom collisions enable the direct measurement of the spectral distribution of the two-photon decay in He-like ions. In addition, we observe strong photon cascades indueed by radiative electron capture.
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