Radiative Decay of the Metastable States of the H and He Sequences — Experiment
There are four known levels in the spectra of one- and two- electron atoms which can decay predominantly by other than an allowed El transition. These are indicated in Fig. 1. The theory of these decays has been described in the preceding paper1 and we here summarize those properties that are relevant for experiment.
KeywordsMetastable State 21S0 State Radiative Decay Electron Bombardment Detector Separation
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