Published May 1989 | Version v1
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A 19-state R-matrix calculation of the electron-photon coincidence parameters λ and |χ| for the electron excitation of 11s → 33,1p in helium at 29.6 eV

Creators

  • 1. International Centre for Theoretical Physics, Trieste (Italy)
  • 2. Queen's Univ., Belfast, Northern Ireland (UK). Dept. of Applied Mathematics

Description

The R-matrix method has been employed to study the electron excitation of atomic helium. Nineteen states (n=1,2,3 and 4) have been included in the expansion of the total wave function. The results of this calculation are used to obtain the electron-photon coincidence parameters λ and |χ| for the excitation of 11s → 33,1p at 29.6 eV. The calculated parameters λ and |χ| are compared with the only available experiments (Donnelly et al. 1988, Neil and Crowe 1988). (author). 14 refs, 2 figs

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
10 p.
Report number
IC--89/97

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
20066617
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
COINCIDENCE METHODS; ELECTRON-ATOM COLLISIONS; HELIUM; R MATRIX; THEORETICAL DATA; WAVE FUNCTIONS
Descriptors DEC
ATOM COLLISIONS; COLLISIONS; COUNTING TECHNIQUES; DATA; ELECTRON COLLISIONS; ELEMENTS; FUNCTIONS; INFORMATION; MATRICES; NONMETALS; NUMERICAL DATA; RARE GASES