Results 21 to 30 of about 42,514 (244)
Effect of Plasma on Polyethylene by Positron Lifetime Spectroscopy [PDF]
علوم و تکنولوژی پلیمر, 2022 Hypothesis: The use of plasma is widely used as a method to change polymer surfaces. The use of atmospheric cold plasma has more advantages than other plasma, laser and X-ray methods. This method is simple and it uses inexpensive equipment.
Maryam Azizi +3 more
doaj +1 more source
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
doaj +1 more source
Metals, 2021 New materials for advanced fission/fusion nuclear facilities must inevitably demonstrate resistance to radiation embrittlement. Thermal and radiation ageing accompanied by stress corrosion cracking are dominant effects that limit the operational ...
Vladimir Slugen +5 more
doaj +1 more source
Positron lifetime spectroscopy applied to pure Tellurium [PDF]
Indian Journal of Physics, 2021 AbstractHigh-purity crystalline Tellurium has been investigated using positron lifetime spectroscopy technique in order to determine basic information missing in the current experimental knowledge of the positron annihilation spectroscopy field. Three different pairs of samples have been studied in the as-received state and, in order to eliminate the ...
openaire +2 more sources
ISIJ International, 2021 Hydrogen-related defects in the metastable austenitic stainless steel 304 were analyzed by positron annihilation lifetime spectroscopy to determine the factors responsible for hydrogen embrittlement.
L. Chiari, A. Komatsu, M. Fujinami
semanticscholar +1 more source
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
doaj +1 more source
Position-resolved Positron Annihilation Lifetime Spectroscopy [PDF]
Journal of Physics: Conference Series, 2013 A new method which allows for position-resolved positron lifetime spectroscopy studies in extended volume samples is presented. In addition to the existing technique of in-situ production of positrons inside large (cm3) bulk samples using high-energy photons up to 16 MeV from bremsstrahlung production, granular position-sensitive photon detectors have ...
Wagner, A. +5 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
doaj +1 more source
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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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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