THRESHOLD PHOTOELECTRONS COINCIDENCE SPECTROSCOPY OF DOUBLY-CHARGED IONS OF HYDROGEN-CHLORIDE AND CHLORINE

被引：49

作者：

MCCONKEY, AG

DAWBER, G

AVALDI, L

MACDONALD, MA

KING, GC

HALL, RI

机构：

[1] CNR,IMAI,AREA RICE ROMA,I-00016 MONTEROTONDO,ITALY

[2] SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

[3] UNIV PARIS 06,DYNAM MOLEC & ATOM LAB,CNRS,URA 774,F-75252 PARIS 05,FRANCE

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1994年 / 27卷 / 02期

关键词：

D O I：

10.1088/0953-4075/27/2/005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single photon double ionization of hydrogen chloride (HCl) and chlorine (Cl2) has been studied in an electron-electron coincidence experiment. Threshold PhotoElectrons COincidence (TPEsCO) spectra have been obtained by using a penetrating field technique, in which only electrons with nearly zero kinetic energy (<20 meV) are detected. The high sensitivity and energy resolution attainable has allowed observation of several states of HCl2+ and Cl-2(2+), excited essentially at their respective thresholds, including vibrational energy levels for some states. Accurate energies of the dicationic (doubly charged ion) features observed in the TPEsCO spectra are presented, and the possible mechanisms of formation are discussed.

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页码：271 / 282

页数：12

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