Abstract:SummaryHalogen-quenched counters may be divided into two groups I and II, comprising counters in which the ionization potential of the halogen molecules lies respectively above and below the metastable level of the rare gas atoms. In counters of group II the ionization of halogen molecules by metastably excited rare gas atoms and by reso'nance photons of the rare gas is supposed to play an important part in the nmltiplication. The resonance photons are absorbed and re-emitted many times before an excited rare … Show more
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