Results 111 to 120 of about 9,908 (221)

Confined water in controlled pore glass CPG-10-120 studied by positron annihilation lifetime spectroscopy and differential scanning calorimetry [PDF]

, 2015
Ondrej Šauša, I. Maťko, E. Illeková, Eva Macová, Dušan Berek   +4 more
openalex   +1 more source

Influence of oversized atoms X = Ti, Ta, W, Mo on the dynamics of native defects under annealing in Fe35Cr35V20Cu5-(X) HEA studied by positron annihilation spectroscopy (PAS)

Nuclear Engineering and Technology
The dynamics of native defects in the high entropy alloy family produced by arc melting Cu5Cr35Fe35V20X5 (at. %), where X = Ti, Ta, W or Mo corresponds to oversized atoms, were studied using positron annihilation lifetime spectroscopy (PALS) and ...
R. Domínguez-Reyes, M.A. Monge, A. Rodríguez-López, Y. Ortega, B. Savoini   +4 more
doaj   +1 more source

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

J Phys Chem B, 2023
Zaleski R, Kotowicz O, Górska A, Zaleski K, Zgardzińska B.   +4 more
europepmc   +1 more source

Free-volume structure of fluoropolymer-based radiation-grafted electrolyte membranes investigated by positron annihilation lifetime spectroscopy [PDF]

, 2010
Shin‐ichi Sawada, A. Kawasuso, M. Maekawa, Atsushi Yabuuchi, Yasunari Maekawa   +4 more
openalex   +1 more source

Comparison of the free volume sizes and shapes determined from crystallographic and PALS data

Nukleonika, 2015
Two different classes of molecular crystals were investigated. The first group was benzenediols, which are characterized by the same chemical composition but a different organization of their crystallographic structures; all of the compounds from this ...
Tydda Maciej, Jasińska Bożena
doaj   +1 more source

The First Cold Antihydrogen

, 2004
Antihydrogen, the atomic bound state of an antiproton and a positron, was produced at low energy for the first time by the ATHENA experiment, marking an important first step for precision studies of atomic antimatter.
A. Bouchta, A. Fontana, A. Rotondi, A. Variola, Amoretti, Amoretti, Amoretti, Amoretti, Baur, Blanford, C. Amsler, C. Carraro, C. Regenfus, C.L. Cesar, Cesar, Charlton, D. Lindelöf, D.P.van der Werf, Dubin, E.Lodi Rizzini, Estrada, Fujiwara, Fujiwara, Fujiwara, G. Bonomi, G. Testera, Gabrielse, Gabrielse, H. Pruys, J.S. Hangst, Jørgensen, Kuno, L.V. Jørgensen, M. Amoretti, M. Charlton, M. Doser, M. Macri, M. Marchesotti, M.C. Fujiwara, Morenzoni, N. Madsen, Nagamine, Niering, P. Genova, P. Montagna, P. Riedler, P.D. Bowe, R. Funakoshi, R. Landua, R.S. Hayano, Regenfus, Surko, V. Filippini, V. Lagomarsino, Y. Yamazaki   +54 more
core   +1 more source

Solution of Orthopositronium lifetime Puzzle

, 2003
The intrinsic decay rate of orthopositronium formed in ${\rm SiO_2}$ powder is measured using the direct $2\gamma$ correction method such that the time dependence of the pick-off annihilation rate is precisely determined.
Asai S., O. JINNOUCHI, Rich J. A., S. ASAI, T. KOBAYASHI, Westbrook C. I., Yam M. H.   +6 more
core   +1 more source

Formation of Nanoscale Protrusions on Polymer Films after Atomic Oxygen Exposure: Observations with Positron Annihilation Lifetime Spectroscopy. [PDF]

Langmuir, 2023
Goto A, Michishio K, Oka T, Tagawa M, Yamashita S.   +4 more
europepmc   +1 more source

Porosimetry for Thin Films of Metal–Organic Frameworks: A Comparison of Positron Annihilation Lifetime Spectroscopy and Adsorption‐Based Methods

, 2021
Timothée Stassin, Rhea Verbeke, Alexander John Cruz, Sabina Rodríguez‐Hermida, Ivo Stassen, João Marreiros, Mikhail Krishtab, Marcel Dickmann, Werner Egger, Ivo F.J. Vankelecom, Shuhei Furukawa, Dirk De Vos, David Grosso, Matthias Thommes, Rob Ameloot   +14 more
openalex   +2 more sources

Defect evolution in nitrogen-implanted CVD diamond during thermal annealing: The formation of NV centers and vacancy clusters

Materials & Design
We investigate the thermal evolution of implantation-induced defects in single-crystal CVD diamond using depth-resolved positron annihilation lifetime spectroscopy (PALS). Samples were implanted with 0.5MeV N+ ions at a fluence of 1×1014cm−2 and annealed
Marcel Dickmann, Ricardo Helm, Werner Egger, Johannes Mitteneder, Peter Sperr, Michael Mayerhofer, Maik Butterling, Eric Hirschmann, Maciej Oskar Liedke, Andreas Wagner, Joachim Dorner, Thomas Schwarz-Selinger, Günther Dollinger   +12 more
doaj   +1 more source