ABSOLUTE DIELECTRONIC RECOMBINATION CROSS-SECTIONS OF HYDROGENLIKE HELIUM

被引：48

作者：

DEWITT, DR

SCHUCH, R

QUINTEROS, T

GAO, H

ZONG, W

DANARED, H

PAJEK, M

BADNELL, NR

机构：

[1] UNIV STOCKHOLM, MANNE SIEGBAHN LAB, S-10405 STOCKHOLM, SWEDEN

[2] JAN KOCHANOWSKI UNIV HUMANITIES & SCI, INST PHYS, PL-25509 KIELCE, POLAND

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

来源：

PHYSICAL REVIEW A | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.50.1257

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have measured the DELTAN=1 dielectronic recombination cross sections of hydrogenlike helium. Recombination rates were investigated as He+ ions interacted with free electrons in the electron-cooler section of an ion storage ring. The ion beam was cooled prior to recombination, resulting in enhanced energy resolution. Fits to the 2l2l' resonances yielded transverse and longitudinal temperatures of kT(perpendicular-to) = 0.15 eV and kT(parallel-to) = 0.8 X 10(-4) eV, respectively. The resulting peak widths are approximately 0.3-eV full width at half maximum. The measured integrated cross sections are in qualitative agreement with calculated resonance strengths.

引用

页码：1257 / 1264

页数：8

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