Monte Carlo simulation of positron slowing down in aluminium
Conference
·
· AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:5023948
- School of Physics, University of East Anglia, Norwich NR4 7TJ (UK)
We have performed Monte Carlo simulations of positron slowing down in Al for incident positron energies in the range 1--10 keV. We present results for the backscattering probabilities and implantation profiles. The backscattering probabilities are significantly higher than the experimental values obtained at University of East Anglia (UEA) by Baker {ital et} {ital al}. However, the results for implantation profiles show good agreement with experimental results by the UEA group, and they indicate that the Makhov distribution, commonly employed in analysis of positron experiments, is not an accurate representation of the true profile. By comparing results obtained fo different models for the scattering cross sections we identify the transport cross section for elastic scattering and the stopping cross section for inelastic scattering as the parameters characterising the influence of the different scattering processes on the positron transport.
- OSTI ID:
- 5023948
- Report Number(s):
- CONF-900798--
- Conference Information:
- Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 218:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BACKSCATTERING
CHARGED-PARTICLE TRANSPORT
CROSS SECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
FERMIONS
KEV RANGE
KEV RANGE 01-10
LEPTONS
LOSSES
MATTER
METALS
MONTE CARLO METHOD
POSITRONS
RADIATION TRANSPORT
RANGE
SCATTERING
360104 -- Metals & Alloys-- Physical Properties
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BACKSCATTERING
CHARGED-PARTICLE TRANSPORT
CROSS SECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
FERMIONS
KEV RANGE
KEV RANGE 01-10
LEPTONS
LOSSES
MATTER
METALS
MONTE CARLO METHOD
POSITRONS
RADIATION TRANSPORT
RANGE
SCATTERING