Results 1 to 10 of about 40,261 (187)

Positron Annihilation Spectroscopy Complex for Structural Defect Analysis in Metal-Hydrogen Systems. [PDF]

open access: yesMaterials (Basel), 2022
The current work is devoted to developing a system for the complex research of metal–hydrogen systems, including in an in situ mode. The system consists of a controlled gas reactor with a unique reaction chamber, a radioisotope positron source, and a ...
Bordulev I   +7 more
europepmc   +2 more sources

Application of Positron Annihilation Spectroscopy in Accelerator-Based Irradiation Experiments. [PDF]

open access: yesMaterials (Basel), 2021
Positron annihilation spectroscopy (PAS) is widely recognized as a powerful characterization technique in all types of radiation damage studies in nuclear materials.
Krsjak V   +7 more
europepmc   +2 more sources

Positron Annihilation Lifetime Spectroscopy Insight on Free Volume Conversion of Nanostructured MgAl2O4 Ceramics

open access: yesNanomaterials, 2021
Herein we demonstrate the specifics of using the positron annihilation lifetime spectroscopy (PALS) method for the study of free volume changes in functional ceramic materials.
Halyna Klym   +3 more
doaj   +2 more sources

Positron Annihilation Spectroscopy Study of Carbon-Vacancy Interaction in Low-Temperature Bainite. [PDF]

open access: yesSci Rep, 2020
Nano-scale investigations of bainitic structures formed at temperatures below 350 °C have shown that the bainitic ferrite lattice is super-saturated in carbon.
Rementeria R   +4 more
europepmc   +2 more sources

Gradient Microstructure Induced by Surface Mechanical Attrition Treatment (SMAT) in Magnesium Studied Using Positron Annihilation Spectroscopy and Complementary Methods. [PDF]

open access: yesMaterials (Basel), 2020
Surface mechanical attrition treatment (SMAT) was used to generate a gradient microstructure in commercial grade magnesium. Positron annihilation lifetime spectroscopy and variable energy positron beam measurements, as well as microhardness tests ...
Skowron K   +8 more
europepmc   +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

Surface Microstructure Study on Corona Discharge-Treated Polyethylene Using Positron Annihilation Spectroscopy [PDF]

open access: yesMolecules
The microstructure and chemical properties of the corona discharge process could provide an effective method for predicting the performance of high-voltage cable insulation materials.
Jingjing Li   +12 more
doaj   +2 more sources

Positron annihilation spectroscopy of vacancy-related defects in CdTe:Cl and CdZnTe:Ge at different stoichiometry deviations. [PDF]

open access: yesSci Rep, 2016
Positron annihilation spectroscopy (PAS) was used to examine the effect of defined Cd-rich and Te-rich annealing on point defects in Cl-doped CdTe and Ge-doped CdZnTe semi-insulating single crystals.
Šedivý L   +4 more
europepmc   +2 more sources

Advancements in Targeted Radiopharmaceuticals: Innovations in Diagnosis and Therapy for Enhanced Cancer Management. [PDF]

open access: yesChembiochem
Radiopharmaceuticals enable precise cancer diagnosis and targeted therapy by combining radioactive isotopes with carrier molecules. This review summarizes advances from 2014 to 2025, emphasizing probe design, click chemistry, novel targets, and nanodelivery systems.
Shaikh MS   +7 more
europepmc   +2 more sources

Spatially resolved positron annihilation spectroscopy on friction stir weld induced defects [PDF]

open access: yesScience and Technology of Advanced Materials, 2010
A friction stir welded (FSW) Al alloy sample was investigated by Doppler broadening spectroscopy (DBS) of the positron annihilation line. The spatially resolved defect distribution showed that the material in the joint zone becomes completely annealed ...
Karin Hain, Christoph Hugenschmidt, Philip Pikart and Peter Böni
doaj   +2 more sources

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