Convenient Preparation of Graphene Oxide from Expandable Graphite and Its Characterization by Positron Annihilation Lifetime Spectroscopy [PDF]
C, 2019 Graphene oxide (GO) is conveniently prepared from expandable graphite using a simplified Hummers’ method. The product is thoroughly characterized by usual techniques (UV-vis, Fourier-transform infrared (FTIR) and Raman spectroscopies, zeta ...
Guido Panzarasa +4 more
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Relationship between the Microstructure and Performance of Graphene/Polyethylene Composites Investigated by Positron Annihilation Lifetime Spectroscopy [PDF]
Nanomaterials, 2021 The quantitative characterization of microstructure is most desirable for the establishment of structure-property relationships in polymer nanocomposites.
Xiaobing Han +6 more
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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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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 annihilation lifetime spectroscopy study of roller burnished magnesium alloy [PDF]
Nukleonika, 2015 The effect of roller burnishing on Vickers’ hardness and positron lifetimes in the AZ91HP magnesium alloy was studied. The microhardness increases with an increase in the burnishing force and with a decrease in the feed. The comparison of various methods
Zaleski Radosław +2 more
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Optical Materials: X, 2022 Gamma-ray-induced positron annihilation lifetime spectroscopy (GiPALS) was used to characterize pristine and codoped Lu3Al5O12 (LuAG) crystals grown using Czochralski (Cz) and micropulling-down (mPD) methods.
Mamoru Kitaura +2 more
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Ortho-positronium lifetime for soft-tissue classification [PDF]
Scientific ReportsThe objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-tissue characterization. We employed positron annihilation lifetime spectroscopy to experimentally measure the three components of the positron annihilation ...
Ashish V. Avachat +6 more
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Structures of Surfactant System Studied by Positron Annihilation Lifetime Spectroscopy [PDF]
, 1996 Surfactant system has many applications in industry. Many investigations have been carried out on surfactants using various methods such as small-angle neutron scattering (SANS), small-angle x-ray scattering(SAXS),conductivity freeze-fracture electron ...
Ibrahim, Rosdi
core +2 more sources
Structure-dependent chlorine dioxide release from poly(acrylic acid) and hydroxyethyl cellulose hydrogels: Insights from real-time positron annihilation lifetime spectroscopy and quantum chemical calculations. [PDF]
Food Chem XPoursafar P +4 more
europepmc +2 more sources
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
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