CALCULATION OF THE ELECTRON-IMPACT COHERENCE PARAMETERS FOR EXCITATION OF THE 3(1)D STATE OF HELIUM AT 26.5 EV

Authors
RATNAVELU K FON WC BERRINGTON KA
Citation
K. Ratnavelu et al., CALCULATION OF THE ELECTRON-IMPACT COHERENCE PARAMETERS FOR EXCITATION OF THE 3(1)D STATE OF HELIUM AT 26.5 EV, Journal of physics. B, Atomic molecular and optical physics, 28(13), 1995, pp. 429-433
Citations number
30
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
28
Issue
13
Year of publication
1995
Pages
429 - 433
Database
ISI
SICI code
0953-4075(1995)28:13<429:COTECP>2.0.ZU;2-8
Abstract
The 19-state and 29-state R-matrix methods of Fon et al have been exte nded to calculate the differential cross section (Dcs) and electron-im pact coherence parameters (EICP) associated with excitation of the 3 D -1 state of helium for an incident electron energy of 26.5 eV at elect ron scattering angles ranging from 0-180 degrees. The calculated EICP values are compared with the only experimental data reported recently by McLaughlin et al. The agreement is good.