Positron Annihilation Lifetime Spectroscopy Insight on Free Volume Conversion of Nanostructured MgAl2O4 Ceramics [PDF]
Nanomaterials, 2021 Herein we demonstrate the specifics of using the positron annihilation lifetime spectroscopy (PALS) method for the study of free volume changes in functional ceramic materials.
Halyna Klym +3 more
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Measurements of Defect Structures by Positron Annihilation Lifetime Spectroscopy of the Tellurite Glass 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Mg, Bi2, Ti) Doped with Ions of the Rare Earth Element Er3+ [PDF]
Nanoscale Research Letters, 2017 The objective of the study was the structural analysis of the 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Mg, Bi2, Ti) tellurite glasses doped with ions of the rare-earth elements Er3+, based on the PALS (positron annihilation lifetime spectroscopy) method of ...
K. Pach +4 more
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Integrated anti-electronics for positron annihilation spectroscopy [PDF]
Scientific ReportsImaging the features of a sample using Positron Annihilation Spectroscopy (PAS) is currently achieved by rastering, i.e. by scanning the sample surface with a sharply focused positron beam.
Francesco Guatieri
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Positron Transport and Annihilation in the Galactic Bulge [PDF]
Galaxies, 2018 The annihilation of positrons in the Milky Way Galaxy has been observed for ∼50 years; however, the production sites of these positrons remains hard to identify.
Fiona Helen Panther
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Positron scattering and annihilation on noble-gas atoms [PDF]
, 2014 Positron scattering and annihilation on noble-gas atoms is studiedabinitio using many-body theory methods for positron energies below the positronium formation threshold.
D. G. Green, J. Ludlow, G. Gribakin
semanticscholar +3 more sources
Efficient and surface site-selective ion desorption by positron annihilation [PDF]
Scientific Reports, 2018 We compared positron- and electron-stimulated desorption (e+SD and ESD) of positive ions from a TiO2(110) surface. Although desorption of O+ ions was observed in both experiments, the desorption efficiency caused by positron bombardment was larger by one
Takayuki Tachibana +4 more
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Anomalous Positron Lifetime in Single Crystal of Weyl Semimetal CoSi
Crystals, 2023 The positron annihilation lifetimes were measured using a 48V positron source in noncentrosymmetric cubic single crystals of CoSi, FeSi and MnSi. The following lifetimes were determined from the positron annihilation time spectra: 168(1) ps for CoSi, 114(
D. A. Salamatin +10 more
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Positron annihilation studies of Eurofer97/ODS steels after helium ion implantation
Nuclear Materials and Energy, 2023 The paper briefly reviews our positron annihilation studies performed on Eurofer97 steel and its ODS variant, performed in the last about 20 years. Various aspects of radiation environments foreseen for these materials were experimentally simulated via ...
Vladimir Slugen +6 more
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He jishu, 2023 BackgroundThe accurate acquisition and correlation coincidence of positron annihilation signal form the basis of the lifetime spectrum sensitive characterization of microscopic defects in materials.
WANG Lei +10 more
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Methodology and Algorithm of Multicomponent Analysis of Positron Annihilation Spectra for Nanostructured Functional Materials [PDF]
Журнал нано- та електронної фізики, 2017 Methodology for treatment of positron annihilation lifetime spectra by LT computer program in the nanostructured ceramic materials was proposed. Features of mathematical description of annihilation spectra was demonstrated. The algorithm for selection of
H.I. Klym +6 more
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