Results 11 to 20 of about 58,492 (234)

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

Nanomaterials, 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, Ivan Karbovnyk, Sergei Piskunov, Anatoli I. Popov   +3 more
doaj   +2 more sources

Positron annihilation lifetime spectroscopy study of Kapton thin foils [PDF]

, 2015
Variable energy positron annihilation lifetime spectroscopy (VE-PALS) experiments on polyimide material Kapton are reported. Thin Kapton foils are widely used in a variety of mechanical, electronic applications. PALS provides a sensitive probe of vacancy-
Egger, W., Kanda, G. S., Keeble, D. J., Lowe, B., Ravelli, L.   +4 more
core   +3 more sources

Measurements of Defect Structures by Positron Annihilation Lifetime Spectroscopy of the Tellurite Glass 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Mg, Bi2, Ti) Doped with Ions of the Rare Earth Element Er3+

Nanoscale Research Letters, 2017
The objective of the study was the structural analysis of the 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Mg, Bi2, Ti) tellurite glasses doped with ions of the rare-earth elements Er3+, based on the PALS (positron annihilation lifetime spectroscopy) method of ...
K. Pach, J. Filipecki, E. Golis, El. S. Yousef, V. Boyko   +4 more
doaj   +2 more sources

Probing the Free Volume in Polymers by Means of Positron Annihilation Lifetime Spectroscopy [PDF]

Polymers, 2023
Positron annihilation lifetime spectroscopy (PALS) is a valuable technique to investigate defects in solids, such as vacancy clusters and grain boundaries in metals and alloys, as well as lattice imperfections in semiconductors.
Giovanni Consolati, Dario Nichetti, F. Quasso   +2 more
openalex   +2 more sources

Commissioning of the J-PET detector in view of the positron annihilation lifetime spectroscopy [PDF]

Hyperfine Interactions, 2018
The Jagiellonian Positron Emission Tomograph (J-PET) is the first PET device built from plastic scintillators. It is a multi-purpose detector designed for medical imaging and for studies of properties of positronium atoms in porous matter and in living ...
K. Dulski, C Curceanu, E Czerwiński, A. Gajos, M. Gorgol, N Gupta-Sharma, B. C. Hiesmayr, Jasińska B, K. Kacprzak, Ł. Kapłon, D. Kisielewska, K. Klimaszewski, G. Korcyl, P. Kowalski, N Krawczyk, W. Krzemien, T. Kozik, E Kubicz, M Mohammed, Sz Niedźwiecki, M. Pałka, M. Pawlik-Niedźwiecka, L Raczyński, J. Raj, K Rakoczy, Zbigniew Rudy, S. Sharma, Shivani, R. Y. Shopa, M. Silarski, M. Skurzok, W. Wiślicki, Bożena Zgardzińska, P. Moskal, K. Dulski, C Curceanu, E Czerwiński, A. Gajos, M. Gorgol, N Gupta-Sharma, B. C. Hiesmayr, Jasińska B, K. Kacprzak, Ł. Kapłon, D. Kisielewska, K. Klimaszewski, G. Korcyl, P. Kowalski, N Krawczyk, W. Krzemien, T. Kozik, E Kubicz, M Mohammed, Sz Niedźwiecki, M. Pałka, M. Pawlik-Niedźwiecka, L Raczyński, J. Raj, K Rakoczy, Zbigniew Rudy, S. Sharma, Shivani, R. Y. Shopa, M. Silarski, M. Skurzok, W. Wiślicki, Bożena Zgardzińska, P. Moskal   +67 more
openalex   +3 more sources

Investigation of the Ability to Detect Electrolyte Disorder Using PET with Positron Annihilation Lifetime Spectroscopy [PDF]

Journal of Physical Chemistry B, 2023
Various concentrations (8–300 mmol/L) of NaCl, KCl, and NaCl + KCl aqueous solutions were investigated using positron annihilation lifetime spectroscopy (PALS).
R. Zaleski, Olga Kotowicz, Agnieszka G'orska, Kamil Zaleski, Bo.zena Zgardzi'nska   +4 more
semanticscholar   +1 more source

Studies on healthy and neoplastic tissues using positron annihilation lifetime spectroscopy and focused histopathological imaging [PDF]

Scientific Reports, 2020
Samples of healthy and neoplastic myometrial tissues were investigated using Positron Annihilation Lifetime Spectroscopy (PALS). Meaningful differences between normal and diseased tissues were observed for each patient.
B. Zgardzińska, Gustaw Chołubek, Bożena Jarosz, K. Wysogląd, M. Gorgol, Magdalena Goździuk, M. Chołubek, B. Jasińska   +7 more
openalex   +2 more sources

Positron Annihilation Spectroscopy as a Diagnostic Tool for the Study of LiCoO₂ Cathode of Lithium-Ion Batteries

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, Valerio Toso, Bernardo Barbiellini, Rafael Ferragut, Vito Di Noto   +4 more
doaj   +1 more source

Ultrashort, MeV-scale laser-plasma positron source for positron annihilation lifetime spectroscopy

Physical Review Accelerators and Beams, 2021
Submicron defects represent a well-known fundamental problem in manufacturing since they can significantly affect performance and lifetime of virtually any high-value component. Positron annihilation lifetime spectroscopy is arguably the only established
Thomas L. Audet, Aaron Alejo, Luke Calvin, Mark Hugh Cunningham, Glenn Ross Frazer, Gagik Nersisyan, Michael Phipps, Jonathan Richard Warwick, Gianluca Sarri, Nasr A. M. Hafz, Christos Kamperidis, Song Li, Daniel Papp   +12 more
doaj   +1 more source

On the Limitations of Positron Annihilation Spectroscopy in the Investigation of Ion-Implanted FeCr Samples

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, Jarmila Degmova, Stanislav Sojak, Martin Petriska, Pavol Noga, Vladimir Krsjak   +5 more
doaj   +1 more source