Results 11 to 20 of about 9,908 (221)

Positron annihilation lifetime spectroscopy of ZnO bulk samples [PDF]

open access: yesPhysical Review B, 2007
In order to gain a further insight into the knowledge of point defects of ZnO, positron annihilation lifetime spectroscopy was performed on bulk samples annealed under different atmospheres. The samples were characterized at temperatures ranging from 10 to 500 K.
Zubiaga, A.   +5 more
openaire   +11 more sources

Potential for biomedical applications of positron annihilation lifetime spectroscopy (PALS) [PDF]

open access: yesAIP Conference Proceedings, 2019
4 pages, Conference Proceeding of "18th International Conference on Positron Annihilation"
Kubicz, Ewelina
openaire   +4 more sources

Data on pure tin by Positron Annihilation Lifetime Spectroscopy (PALS) acquired with a semi-analog/digital setup using DDRS4PALS [PDF]

open access: yesData in Brief, 2019
Positron annihilation lifetime spectroscopy (PALS) provides a powerful technique for non-destructive microstructure investigations in a broad field of material classes such as metals, semiconductors, polymers or porous glasses. Even though this method is
Danny Petschke   +2 more
doaj   +2 more sources

Gamma-ray-induced positron annihilation lifetime spectroscopy at UVSOR

open access: diamondJournal of Physics: Conference Series
Abstract This paper reports on the development of a gamma-ray-induced positron annihilation lifetime spectroscopy system at the ultraviolet synchrotron orbital radiation (UVSOR) facility. Using quasi-monochromatic 6.6 MeV ultrashort pulsed gamma rays enables measurement of positron lifetime spectra without source components or background.
Y. Taira, Yasuaki Okano, Tetsuya Hirade
openalex   +2 more sources

Integrated anti-electronics for positron annihilation spectroscopy [PDF]

open access: yesScientific Reports
Imaging 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
doaj   +2 more sources

Ortho-positronium lifetime for soft-tissue classification [PDF]

open access: yesScientific Reports
The 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
doaj   +2 more sources

Investigation of Positron Annihilation Lifetime Spectroscopy and Tensile behavior of Graphene Oxide/Epoxy Nanocomposites [PDF]

open access: diamondJournal of Advanced Materials in Engineering
Introduction and Objectives: Positron Annihilation Lifetime Spectroscopy is a sensitive method for investigating the free volume in polymers at the atomic scale, enabling the determination of pore size, shape, and concentration.
Mohammad Koohkan   +2 more
doaj   +2 more sources

Detection of atomic scale changes in the free volume void size of three-dimensional colorectal cancer cell culture using positron annihilation lifetime spectroscopy. [PDF]

open access: yesPLoS ONE, 2014
Positron annihilation lifetime spectroscopy (PALS) provides a direct measurement of the free volume void sizes in polymers and biological systems. This free volume is critical in explaining and understanding physical and mechanical properties of polymers.
Eneko Axpe   +8 more
doaj   +2 more sources

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