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A molecular beam scattering apparatus for surface chemiluminescence studies. Preliminary results for emission of excited K atoms.
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- Andersson, Dag R. (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hellberg, Lars, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kasemo, Bengt Herbert, 1942 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- (creator_code:org_t)
- 1989
- 1989
- English.
- Journal article (other academic/artistic)
Abstract
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- A molecular beam scattering apparatus has been constructed for the study of surface chemiluminescence, i.e. the emission of light during a molecule-surface reaction. The apparatus consists of a beam forming stage designed for molecular and atomic chlorine, and a scattering chamber. The scattering chamber houses the sample, an alkali evaporation source, and a rotatable flange which holds the detectors; (i) the imaging optics of the photon detector, (ii) a mass spectrometer detector and (iii) a charged particle collector. The performance of the apparatus is demonstrated for a beam of chlorine molecules impinging on continuously evaporated or freshly evaporated potassium films. Intensity versus chlorine exposure and angular intensity distributions are presented for the K(4p ->4s) atomic line emission of the K+Cl$_2$ surface chemiluminescence spectrum.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- vet (subject category)
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