The positron distribution in a layered stack sample studied with the use of positron lifetime spectroscopy

Authors :: Jerzy Dryzek
P. Horodek
Source :: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 269:1411-1416
Publication Year :: 2011
Publisher :: Elsevier BV, 2011.
Abstract: Computer simulation using GEANT4 codes indicates an enhancement of the fraction of implanted positrons stopped in the denser regions of a layered sample. However, positron lifetime measurements performed for layers of pure aluminum, silver and gold foils do not reveal this effect, indicating instead that backscattering plays an important role in determining the positron implantation profile in layered and/or heterogeneous samples.

Subjects :: Nuclear and High Energy Physics
Positron
Materials science
chemistry
Stack (abstract data type)
Aluminium
Positron Lifetime Spectroscopy
Physics::Accelerator Physics
chemistry.chemical_element
Atomic physics
Instrumentation
Sample (graphics)

ISSN :: 0168583X
Volume :: 269
Database :: OpenAIRE
Journal :: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Accession number :: edsair.doi...........2552d2bf24970d7769b18ad0aa8d6603

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