Positron interactions with water–total elastic, total inelastic, and elastic differential cross section measurements

Journal Article · Tue Jan 28 00:00:00 EST 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4862685· OSTI ID:22255204

Tattersall, Wade ^[1]; Chiari, Luca ^[2]; Machacek, J. R.; Anderson, Emma; Sullivan, James P. ^[1]; White, Ron D. ^[3]; Brunger, M. J. ^[2]; Buckman, Stephen J. ^[1]; Garcia, Gustavo ^[4]; Blanco, Francisco ^[5]

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1. Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)
2. Centre for Antimatter-Matter Studies, School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide 5001, South Australia (Australia)
3. Centre for Antimatter-Matter Studies, School of Engineering and Physical Sciences, James Cook University, Townsville, 4810 Queensland (Australia)
4. Instituto de Fısica Fundamental, Consejo Superior de Investigationes Cientıficas (CSIC), Serrano 113-bis, E-28006 Madrid (Spain)
5. Departamento de Fısica Atomica, Molecular y Nuclear, Universidad Complutense de Madrid, E-28040 Madrid (Spain)

Utilising a high-resolution, trap-based positron beam, we have measured both elastic and inelastic scattering of positrons from water vapour. The measurements comprise differential elastic, total elastic, and total inelastic (not including positronium formation) absolute cross sections. The energy range investigated is from 1 eV to 60 eV. Comparison with theory is made with both R-Matrix and distorted wave calculations, and with our own application of the Independent Atom Model for positron interactions.

• OSTI ID: 22255204
• Journal Information: Journal of Chemical Physics, Vol. 140, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
INELASTIC SCATTERING
INTERACTIONS
POSITRON BEAMS
POSITRONIUM
POSITRONS
R MATRIX
WATER VAPOR