THEORETICAL-STUDY OF THE OPTIMAL CONDITIONS FOR THE MEASUREMENT OF THE DIFFERENTIAL CROSS-SECTION OF THE DOUBLE IONIZATION OF HELIUM BY FAST ELECTRONS

被引：47

作者：

JOULAKIAN, B

DALCAPPELLO, C

机构：

[1] Institut de Physique, Laboratoire de Physique Moléculaire et des Collisions, Technopôle Metz, 2000, Rue Arago

来源：

PHYSICAL REVIEW A | 1993年 / 47卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.47.3788

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optimal values of the scattering and the ejection angles and energies are studied in the case of the double ionization of the helium atom by fast-electron impact (5 keV) using a recently developed procedure based on the first Born approximation. This calculation includes several correlated initial-bound-state wave functions and the correlated-double-continuum wave function satisfying the exact asymptotic boundary conditions. Besides its interest for (e-3e) measurements which are in preparation in Orsay, and its utility for supplying immediate results needed for the verification of the different hypotheses of the ionization mechanisms, this work collects information which is potentially important for future calculations of the total cross section for the double ionization of helium.

引用

页码：3788 / 3795

页数：8

共 17 条

[1] SIMPLE CORRELATED WAVEFUNCTIONS FOR GROUND STATE OF HELIUMLIKE ATOMS [J].

BONHAM, RA ;

KOHL, DA .

JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (07) :2471-&

[2] TRIPLY-DIFFERENTIAL CROSS-SECTIONS FOR IONIZATION OF HYDROGEN-ATOMS BY ELECTRONS AND POSITRONS [J].

BRAUNER, M ;

BRIGGS, JS ;

KLAR, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1989, 22 (14) :2265-2287

[3] 3-BODY DYNAMICS IN THE REACTION H(E, 2E) H+ AT INTERMEDIATE ENERGIES [J].

BRAUNER, M ;

BRIGGS, JS ;

KLAR, H .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1989, 11 (03) :257-258

[4] ANGULAR-DISTRIBUTIONS IN THE DOUBLE IONIZATION OF HELIUM BY ELECTRON-IMPACT [J].

DALCAPPELLO, C ;

LEROUZO, H .

PHYSICAL REVIEW A, 1991, 43 (03) :1395-1404

[5]

DALCAPPELLO C, 1992, Z PHYS D ATOM MOL CL, V23, P389, DOI 10.1007/BF01429263

[6] COINCIDENCE STUDY OF THE ELECTRON-IMPACT IONIZATION OF NEON - MOMENTUM DENSITY DETERMINATION AND TEST OF VARIOUS SCATTERING MODELS [J].

DAOUD, A ;

LAHMAMBENNANI, A ;

DUGUET, A ;

DALCAPPELLO, C ;

TAVARD, C .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (01) :141-153

[7] DOUBLE IONIZATION MECHANISMS FROM E,(3-1)E AND (E,3E) EXPERIMENTS [J].

DUGUET, A ;

LAHMAMBENNANI, A .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1992, 23 (04) :383-388

[8] Electron term of hydrogen molecules [J].

Hylleraas, Egil A. .

ZEITSCHRIFT FUR PHYSIK, 1931, 71 (11-12) :739-763

[9] INELASTIC COLLISIONS OF FAST CHARGED PARTICLES WITH ATOMS AND MOLECULES - BETHE THEORY REVISITED [J].

INOKUTI, M .

REVIEWS OF MODERN PHYSICS, 1971, 43 (03) :297-&

[10] The ground state of the hydrogen molecule [J].

James, HM ;

Coolidge, AS .

JOURNAL OF CHEMICAL PHYSICS, 1933, 1 (12) :825-835

← 1 2 →