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

被引：36

作者：

KENNTNER, J

LINKEMANN, J

BADNELL, NR

BROUDE, C

HABS, D

HOFMANN, G

MULLER, A

PINDZOLA, MS

SALZBORN, E

SCHWALM, D

WOLF, A

机构：

[1] UNIV HEIDELBERG,D-69117 HEIDELBERG,GERMANY

[2] UNIV STUTTGART,INST STRAHLENPHYS,D-70550 STUTTGART,GERMANY

[3] UNIV STRATHCLYDE,DEPT PHYS & APPL PHYS,GLASGOW G4 0NG,LANARK,SCOTLAND

[4] UNIV GIESSEN,INST KERNPHYS,D-35392 GIESSEN,GERMANY

[5] AUBURN UNIV,DEPT PHYS,AUBURN,AL 36849

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 98卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(95)00092-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Absolute cross sections for dielectronic recombination and electron-impact ionization of Li-like Cl14+ and Si11+ ions have been measured with high energy resolution at the Heidelberg heavy ion storage ring TSR, using the electron cooler as a flee electron target. Recombination and ionization rates were recorded simultaneously for the whole energy range from 0 up to the second ionization threshold. We discuss excitation-autoionization steps, dielectronic ionization and dielectronic recombination resonances associated with 1s --> 21 and Is --> 31 excitations. The results agree well with theory, but the distorted wave calculations overestimate direct ionization by similar to 20%.

引用

页码：142 / 145

页数：4

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