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Quenching and Depolarization of Mercury Resonance Radiation
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1971
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Mercury Resonance RadiationNuclear PhysicsPhysicsEngineeringNatural SciencesSpectroscopyProton-coupled Electron TransferResonanceCo 2Atomic PhysicsDouble ResonancePhysical ChemistryResonance RadiationChemistryQuantum ChemistryMolecular ChemistrySpectra-structure Correlation
The quenching and depolarization of mercury resonance radiation (2537 Å), induced in collisions of Hg(6 3 P 1 ) atoms with various molecules has been investigated using the method of delayed coincidences. The following total quenching cross sections have been obtained for the process Hg(6 3 P 1 ) → Hg(6 3 P 0 , 6 1 S 0 ): Hg–H 2 , 24.6 Å 2 ; Hg–D 2 , 22.7 Å 2 ; Hg–CO, 21.7 Å 2 ; Hg–CO 2 , 10.2 Å 2 ; Hg–O 2 , 60.5 Å 2 ; Hg– 14 N 2 , 0.73 Å 2 ; Hg– 15 N 2 , 0.78 Å 2 ; and Hg–Xe, < 0.002 Å 2 . A cross section of 267 Å 2 has been measured for the depolarization of the resonance radiation by collisions with CO 2 molecules.