Total-scattering cross-section measurements for intermediate-energy positrons and electrons colliding with Kr and Xe
Journal Article
·
· Phys. Rev. A; (United States)
Total scattering cross sections have been measured in the same apparatus for positrons and electrons colliding with krypton and xenon in the energy range from 20 to 800 eV with the use of a beam-transmission technique. The unusual shapes of the peaks in the e/sup +/-Kr and e/sup +/-Xe total-cross-section curves suggest the possibility that inelastic processes may be contributing significantly to the respective total cross sections in those peaks. A distinct shoulder exists in the e/sup -/-Xe total-cross-section curve in the vicinity of 20 eV, followed by a rapid decrease with the electron results dropping below the corresponding positron results in the energy range from 40 to 90 eV. This crossing of the curves at these energies is somewhat anomalous compared to the situation for the other inert gases, where the electron results remain higher than the positron results. Estimates are made of potential experimental errors, including that associated with incomplete discrimination against small-angle forward scattering.
- Research Organization:
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48202
- OSTI ID:
- 6617953
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 26:3; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Thesis/Dissertation
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Mon Dec 31 23:00:00 EST 1979
·
OSTI ID:5421263
Measurements of total scattering cross sections for low-energy positrons and electrons colliding with krypton and xenon
Journal Article
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Fri Oct 31 23:00:00 EST 1980
· Phys. Rev., A; (United States)
·
OSTI ID:6847900
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Wed Dec 14 23:00:00 EST 2011
· Physical Review. A
·
OSTI ID:22095624
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
COLLIDING BEAMS
COLLISIONS
CROSS SECTIONS
DATA
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FLUIDS
GASES
INELASTIC SCATTERING
INFORMATION
KRYPTON
NONMETALS
NUMERICAL DATA
RARE GASES
SCATTERING
TOTAL CROSS SECTIONS
XENON
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
COLLIDING BEAMS
COLLISIONS
CROSS SECTIONS
DATA
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FLUIDS
GASES
INELASTIC SCATTERING
INFORMATION
KRYPTON
NONMETALS
NUMERICAL DATA
RARE GASES
SCATTERING
TOTAL CROSS SECTIONS
XENON