Abstract
A new spectrometer, electron radical interaction chamber, has been developed to study dissociative electron attachment to unstable molecules such as free radicals. It includes a trochoidal electron monochromator and a time-of-flight mass spectrometer. Radicals are generated with a microwave discharge at 2.45 GHz. Preliminary data are presented for radicals formed when a mixture of helium and sulphur dioxide was passed through the microwave discharge. Several new resonances are observed with the discharge on. Resonances at 0 eV (S−), 0.8, 1.2, 3.0 eV (SO−) and 3.7 eV (SO− and S2O−) are assigned to the radical S2O2 and a resonance at 1.6 eV (S−) is assigned to S2O. No new resonances have been assigned to SO, which was also generated in the microwave discharge.
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Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
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