MULTI-STATE IMPACT-PARAMETER TREATMENT OF HYDROGEN-HELIUM EXCITATION COLLISIONS

被引：32

作者：

FLANNERY, MR

机构：

[1] Smithsonian Astrophysical Observatory, Harvard College Observatory, Cambridge, MA

来源：

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS | 1969年 / 2卷 / 09期

关键词：

D O I：

10.1088/0022-3700/2/9/302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An impact-parameter treatment is carried out for the process H(1s) + He(1s2) -> H(2s or 2p) + He(1s2), with incident hydrogen atom energies E in the range 1 kev <or= E <or= 100 kev. Full account is taken of distortion, back-coupling, rotational coupling and the virtual transition sequence 1s l harp over r 2p l harp over r 2s. The calculated inelastic cross sections and the percentage polarization of the emitted Lyman-α radiation show satisfactory agreement with the recent experimental results of Ankudinov et al. and of Dose et al. The effect of simultaneous excitation of both the target and the projectile atoms is discussed.

引用

页码：913 / &

共 14 条

[1]

ANKUDINOV VA, 1967, 7 P INT C PHYS EL AT, P312

[2] INELASTIC COLLISIONS BETWEEN HEAVY PARTICLES .2. CONTRIBUTIONS OF DOUBLE-TRANSITIONS TO THE CROSS SECTIONS ASSOCIATED WITH THE EXCITATION OF HYDROGEN ATOMS IN FAST ENCOUNTERS WITH OTHER HYDROGEN ATOMS [J].

BATES, DR ;

GRIFFING, GW .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1954, 67 (416) :663-668

[3]

BATES DR, 1961, QUANTUM THEORY, P251

[4] ACCURATE FIRST BORN APPROXIMATION CROSS SECTIONS FOR EXCITATION OF HELIUM BY FAST ELECTRONS [J].

BELL, KL ;

KENNEDY, DJ ;

KINGSTON, AE .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1969, 2 (01) :26-&

[5]

DOSE V, 1968, HELV PHYS ACTA, V41, P264

[6] POLARIZATION OF LYMAN ALPHA RADIATION IN HYDROGEN-RARE-GAS COLLISIONS [J].

DOSE, V .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1969, 2 (01) :19-&

[7] APPROXIMATIONS TO 2-STATE IMPACT-PARAMETER TREATMENT OF HEAVY-PARTICLE COLLISIONS [J].

FLANNERY, MR .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1969, 2 (09) :909-&

[8] H-H INTERACTION POTENTIALS [J].

FLANNERY, MR ;

LEVY, H .

JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1969, 2 (03) :314-&

[9]

FLANNERY MR, IN PRESS

[10]

Kennedy D., 1968, J PHYS B, V1, P526

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