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DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR COLLISIONS OF 100 EV POSITRONS AND ELECTRONS WITH ARGON ATOMS

KOVER, A; LARICCHIA, G; CHARLTON, M; (1994) DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR COLLISIONS OF 100 EV POSITRONS AND ELECTRONS WITH ARGON ATOMS. J PHYS B-AT MOL OPT , 27 (11) 2409 - 2416.

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Abstract

Energy distributions of scattered positrons (e+) and ejected electrons (e-) resulting from 100 eV e+-Ar collisions have been determined at 30-degrees and 45-degrees in coincidence with the remnant Ar+ ions. A calibration method has been employed to convert the measured intensities into absolute cross sections, The experimental data are compared with values calculated by a classical-trajectory Monte Carlo method. The agreement is good for the secondary e- but poor for the scattered el. The ratios of the measured secondary e- intensities at 15 eV have been determined for e- and e+ impact and compared with existing experimental and theoretical values.

Type:Article
Title:DOUBLY DIFFERENTIAL CROSS-SECTIONS FOR COLLISIONS OF 100 EV POSITRONS AND ELECTRONS WITH ARGON ATOMS
Keywords:IMPACT IONIZATION, ELASTIC-SCATTERING, HYDROGEN, AR, HELIUM, HE
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy

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