Results 31 to 40 of about 58,492 (234)

Positron-electron autocorrelation function study of E-center in silicon [PDF]

, 2003
A study was conducted on the positron-electron autocorrelation function of defect center in silicon. The positron annihilation lifetime spectroscopy (PALS) spectra taken on the as-grown and defected samples of silicon were studied.
Baling, CD, Biasini, M, China, HM, Ferro, G, Fung, S, Gong, M, Ho, KF, Ng, KP   +7 more
core   +1 more source

Analysis of electron-positron momentum spectra of metallic alloys as supported by first-principles calculations [PDF]

, 2007
Electron-positron momentum distributions measured by the coincidence Doppler broadening method can be used in the chemical analysis of the annihilation environment, typically a vacancy-impurity complex in a solid.
A. Dupasquier, C. Kittel, G. Dlubek, G. Dlubek, H. E. Schaefer, H. E. Schaefer, I. Makkonen, M. J. Puska, P. Folegati, P. Kirkegaard, R. Ferragut, R. Ferragut, R. K. W. Marceau, Y. Nagai, Y. Nagai   +14 more
core   +2 more sources

Development of a PbWO4 Detector for Single-Shot Positron Annihilation Lifetime Spectroscopy at the GBAR Experiment [PDF]

, 2019
We have developed a PbWO4 (PWO) detector with a large dynamic range to measure the intensity of a positron beam and the absolute density of the ortho-positronium (o-Ps) cloud it creates.
Choi, J. J., Chung, M., Clade, P., Comini, P., Crepin, P-P, Crivelli, P., Dalkarov, O., Debu, P., Dodd, L., Douillet, A., Froehlich, P., Guellati, S., Heinrich, J., Hervieux, P-A, Hilico, L., Husson, A., Indelicato, P., Janka, G., Jonsell, S., Karr, J-P, Kim, B. H., Kim, E-S, Kim, S. K., Ko, Y., Kosinski, T., Kuroda, N., Latacz, B., Lee, H., Lee, J., Leite, A. M. M., Leveque, K., Lim, E., Liszkay, L., Lotrus, P., Louvradoux, T., Lunney, D., Manfredi, G., Mansoulie, B., Matusiak, M., Mornacchi, G., Nesvizhevsky, V. V., Nez, F., Niang, S., Nishi, R., Nourbaksh, S., Park, K. H., Paul, N., Perez, P., Radics, B., Regenfus, C., Reynaud, S., Rousse, J-Y, Rubbia, A., Rzadkiewicz, J., Sacquin, Y., Schmidt-Kaler, F., Staszczak, M., Tuchming, B., Vallage, B., van der Werf, D. P., Voronin, A., Welker, A., Wolf, S., Won, D., Wronka, S., Yamazaki, Y., Yoo, K-H   +66 more
core   +2 more sources

FACILITIES FOR NANO MATERIALS EXAMINATION AT THE PULSTAR REACTOR [PDF]

EPJ Web of Conferences, 2021
The PULSTAR is a 1-MWth nuclear research reactor located at North Carolina State University. It is fueled by uranium dioxide assemblies enriched to 4% or 6% in U-235 and is currently under licensing for operation at 2-MWth power.
Hawari A. I., Liu M., Cai Q.
doaj   +1 more source

Microscopic identification of native donor Ga-vacancy complexes in Te-doped GaAs [PDF]

, 1999
Native vacancies in Te-doped (5×1016–5×1018cm−3) GaAs were investigated by means of positron lifetime and Doppler-broadening coincidence spectroscopy.
Gebauer, J., Hakala, M., Krause-Rehberg, R., Lausmann, M., Puska, Martti J., Staab, T. E. M.   +5 more
core   +1 more source

Formation of Subsurface Zone Induced by Sliding Wear in Zirconium Studied by Positron Lifetime Spectroscopy

Tribology letter, 2016
The zone below the surface in pure Zr exposed to dry sliding is the subject of studies using positron lifetime methods. New type of the defect depth profile is observed.
J. Dryzek, K. Siemek
semanticscholar   +1 more source

DLTPulseGenerator: A library for the simulation of lifetime spectra based on detector-output pulses

SoftwareX, 2018
The quantitative analysis of lifetime spectra relevant in both life and materials sciences presents one of the ill-posed inverse problems and, hence, leads to most stringent requirements on the hardware specifications and the analysis algorithms. Here we
Danny Petschke, Torsten E.M. Staab
doaj   +1 more source

Natural rubber/styrene-butadiene rubber blends prepared by solution mixing: Influence of vulcanization temperature using a Semi-EV sulfur curing system on the microstructural properties [PDF]

, 2017
Blends of natural rubber (NR) and styrene-butadiene rubber (SBR) were prepared by solution mixing and vulcanized with sulfur and accelerator in a Semi-EV system at 433 K and 443 K in order to study the vulcanization kinetic and the influence of ...
Macchi, Carlos Eugenio, Mansilla, Marcela Angela, Marzocca, Angel José, Somoza, Alberto Horacio   +3 more
core   +1 more source

One‐Step Assembly of α‐Aryl‐Substituted DOTAs as Superior and Universal Platforms for Multifunctional Theranostics

Angewandte Chemie, EarlyView.
A one‐step multi‐component synthetic approach is reported to construct α‐aryl‐substituted DOTAs, which required tedious multi‐step synthesis in all previous works. The synthesized α‐aryl‐substituted DOTAs showed improved performance for developing multifunctional theranostics and represent a universal platform for bioconjugation. Abstract α‐Substituted
Pak‐Lun Lam, Yue Wu, Lijia Yao, Hei‐Yui Kai, Ho‐Fai Chau, Qian Zhang, Wanqi Zhou, Jean‐Claude G. Bünzli, Ka‐Leung Wong   +8 more
wiley   +2 more sources

Review on Steel Enhancement for Nuclear RPVs

Metals, 2021
The reactor pressure vessel (RPV) is one of the most important elements of a nuclear power plant (NPP). The RPV determines the plant operational lifetime since it is not replaceable economically.
Ferenc Gillemot
doaj   +1 more source