Results 21 to 30 of about 40,261 (187)
Single-shot positron annihilation lifetime spectroscopy using a liquid scintillator
AIP Advances, 2021 Liquid scintillators provide a fast, single component response. However, they traditionally have a low flashpoint and high vapor pressure. We demonstrate the use of an EJ-309 scintillator (high flashpoint and low vapor pressure variant) to acquire single-
Joshua R. Machacek +2 more
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Tellurium coincidence Doppler broadening spectroscopy study
Results in Physics, 2019 The Coincidence Doppler broadening (CDB) reference curve for pure Tellurium (Te) has been obtained stablishing a point of departure for future Positron Annihilation Spectroscopy (PAS) studies of alloys that include Te among its components to determine ...
R. Domínguez-Reyes
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Identifying vacancy complexes in compound semiconductors with positron annihilation spectroscopy: a case study of InN [PDF]
, 2011 We present a comprehensive study of vacancy and vacancy-impurity complexes in InN combining positron annihilation spectroscopy and ab-initio calculations.
Christian Rauch +4 more
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FACILITIES FOR NANO MATERIALS EXAMINATION AT THE PULSTAR REACTOR [PDF]
EPJ Web of Conferences, 2021 The PULSTAR is a 1-MWth nuclear research reactor located at North Carolina State University. It is fueled by uranium dioxide assemblies enriched to 4% or 6% in U-235 and is currently under licensing for operation at 2-MWth power.
Hawari A. I., Liu M., Cai Q.
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Metals, 2020 Safe and long term operation of nuclear reactors is one of the most discussed challenges in nuclear power engineering. The radiation degradation of nuclear design materials limits the operational lifetime of all nuclear installations or at least ...
V. Slugen +5 more
semanticscholar +1 more source
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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Identification of lead vacancy defects in lead halide perovskites
Nature Communications, 2021 Point defects compromise the electronic performance of hybrid perovskites, yet no experimental identifications have been reported. Here, the authors, for the first time, identify lead monovacancy defect in MAPbI3 using positron annihilation lifetime ...
David J. Keeble +7 more
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A Positron Implantation Profile Estimation Approach for the PALS Study of Battery Materials
Condensed Matter, 2023 Positron annihilation spectroscopy is a powerful probe to investigate the interfaces in materials relevant for energy storage such as Li-ion batteries. The key to the interpretation of the results is the positron implantation profile, which is a spatial ...
Xin Li +5 more
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Positron Annihilation Spectroscopy of Young Supernova Remnants
Odessa Astronomical Publications, 2018 This paper discusses radiative and thermodynamic properties of cold rarefied aggregates of non-uniformly distributed gas and dust through which high fluxes of positrons with energies of 0.011-3.6 MeV pass.
D. N. Doikov
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Millisecond flash lamp curing for porosity generation in thin films
Scientific Reports, 2023 Flash lamp annealing (FLA) with millisecond pulse durations is reported as a novel curing method for pore precursor's degradation in thin films. A case study on the curing of dielectric thin films is presented.
Ahmed G. Attallah +7 more
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