Doubly differential cross sections of secondary electrons ejected from gases by electron impact: 25 --250 eV on H/sub 2/

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.24.79· OSTI ID:6194068

Shyn, T W; Sharp, W E; Kim, Y

Doubly differential cross sections of secondary electrons ejected from H/sub 2/ by electron impact have been measured by a crossed-beam method. The incident energies used were 25, 40, 60, 100, 150, and 250 eV. The energy and angular range of secondary electrons measured were from one half of the difference between incident energy and ionization potential to 1.0 eV and from 12/sup 0/ to 156/sup 0/, respectively. The present results do not agree with those of DuBois and Rudd for slow secondary electrons (<20 eV) ejected by 100-eV primary electrons. The present data lead to total ionization cross sections within 10% of other measurements.

• Research Organization: Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan 48109
• OSTI ID: 6194068
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 24:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY RANGE
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FERMIONS
HYDROGEN
INFORMATION
IONIZATION
LEPTONS
MOLECULE COLLISIONS
NONMETALS
NUMERICAL DATA
SECONDARY EMISSION