Experimental observation of dissociative electron attachment to S2O and S2O2 with a new spectrometer for unstable molecules

Thomas Field, A.E. Slattery, D.J. Adams, D.D. Morrison

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)255-264
Number of pages10
JournalJournal of Physics B: Atomic Molecular and Optical Physics
Volume38(3)
Issue number3
DOIs
Publication statusPublished - Feb 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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