IONIZATION OF THE HYDROGEN ATOM BY SLOW ELECTRONS

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Trudy Instituta Fiziki, Akademiya Nauk Latviiskoi SSR (Latvian S.S.R.)

OSTI ID:4102841

Veldre, V Ya; Karule, E M

In collisions of slow electrons with a hydrogen atom, the Born approximation is not reliable, and it is necessary to take into account distortion of the incident electron wave function by the field of the atom before and after the collision. Both electrons are described by coulombic functions. The calculations were carried out with and without taking exchange into account. The incident electron energy was from 13.7 to 68 ev. All the computations were performed on a digital computer. The cross section for the triplet case is much smaller than the partial s cross section for the singlet case. The cross section without exchange is approximately twice the cross section with exchange. On taking into account the distortion of the incident wave, the cross section is about 20% greater than the cross section obtained by the modified Born approximation. It was not possible to compare the cross sections with experimental data, since the s cross section is a small part of the total cross section. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-009035
• OSTI ID: 4102841
• Journal Information: Trudy Instituta Fiziki, Akademiya Nauk Latviiskoi SSR (Latvian S.S.R.), Journal Name: Trudy Instituta Fiziki, Akademiya Nauk Latviiskoi SSR (Latvian S.S.R.) Vol. Vol: 13; ISSN TIFLA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ATOMS
BORN APPROXIMATION
CROSS SECTIONS
ELECTRONS
ENERGY LEVELS
ENERGY RANGE
HYDROGEN
IONIZATION
NUMERICALS
PERTURBATION THEORY
PHYSICS
QUANTUM MECHANICS
SCATTERING