ZRESONANT ELECTRON-IMPACT IONIZATION AND RECOMBINATION OF LI-LIKE CL14-TEST STORAGE-RING( AND SI11+ AT THE HEIDELBERG)

Authors
KENNTNER J LINKEMANN J BADNELL NR BROUDE C HABS D HOFMANN G MULLER A PINDZOLA MS SALZBORN E SCHWALM D WOLF A
Citation
J. Kenntner et al., ZRESONANT ELECTRON-IMPACT IONIZATION AND RECOMBINATION OF LI-LIKE CL14-TEST STORAGE-RING( AND SI11+ AT THE HEIDELBERG), Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 98(1-4), 1995, pp. 142-145
Citations number
13
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
98
Issue
1-4
Year of publication
1995
Pages
142 - 145
Database
ISI
SICI code
0168-583X(1995)98:1-4<142:ZEIARO>2.0.ZU;2-9
Abstract
Absolute cross sections for dielectronic recombination and electron-im pact ionization of Li-like Cl14+ and Si11+ ions have been measured wit h high energy resolution at the Heidelberg heavy ion storage ring TSR, using the electron cooler as a flee electron target. Recombination an d ionization rates were recorded simultaneously for the whole energy r ange from 0 up to the second ionization threshold. We discuss excitati on-autoionization steps, dielectronic ionization and dielectronic reco mbination resonances associated with 1s --> 21 and Is --> 31 excitatio ns. The results agree well with theory, but the distorted wave calcula tions overestimate direct ionization by similar to 20%.