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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Condensed Matter, 2021 Positron annihilation spectroscopy using lifetime and Doppler broadening allows the characterization of the lithiation state in LiCoO2 thin film used in cathode of lithium-ion batteries.
Gioele Pagot +4 more
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Neutron irradiated tungsten bulk defect characterization by positron annihilation spectroscopy
Nuclear Materials and Energy, 2021 Positron annihilation spectroscopy was used to evaluate the defects in neutron irradiated tungsten exposed at five different irradiation conditions. The variables in neutron irradiation included temperature, displacements per atom (dpa), and neutron ...
Chase N. Taylor +4 more
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Hydrated doped-BaZrO3 proton conductors studied by positron annihilation lifetime spectroscopy
Solid State Ionics, 2023 Jagoda Urban‐Klaehn +5 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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Positron annihilation lifetime spectroscopy at a superconducting electron accelerator
Journal of Physics: Conference Series, 2017 The Helmholtz-Zentrum Dresden-Rossendorf operates a superconducting linear accelerator for electrons with energies up to 35 MeV and average beam currents up to 1.6 mA. The electron beam is employed for production of several secondary beams including X-rays from bremsstrahlung production, neutrons, and positrons.
Wagner, A. +10 more
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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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Positron annihilation lifetime spectroscopy using fast scintillators and digital electronics [PDF]
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019 Positron Annihilation Lifetime Spectroscopy (PALS) is a non-destructive radiological technique widely used in material science studies. PALS typically relies on an analog coincidence measurement setup and allows the estimate of the positron lifetime in a material sample under investigation.
Fang, Ming +2 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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Positron-electron autocorrelation function study of E-center in silicon [PDF]
, 2003 A study was conducted on the positron-electron autocorrelation function of defect center in silicon. The positron annihilation lifetime spectroscopy (PALS) spectra taken on the as-grown and defected samples of silicon were studied.
Baling, CD +7 more
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