Results 211 to 220 of about 9,908 (221)

Various types of polysiloxanes studied by positron annihilation lifetime spectroscopy

Journal of Molecular Structure, 2014
Abstract In the work, linear poly(vinylsiloxanes) with regular distributions of vinyl groups along chains, the networks obtained by their hydrosilylation with various hydrogensiloxanes, products of pyrolysis of such networks as well as the networks prepared via reaction of low-molecular siloxanes have been studied by positron anihilation lifetime ...
Anna Nyczyk-Malinowska, Ewa Dryzek, Magdalena Hasik, Jerzy Dryzek   +3 more
openaire   +1 more source

Timing Performance of Organic Scintillators for Positron Annihilation Lifetime Spectroscopy

2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2019
Positron Annihilation Lifetime Spectroscopy (PALS) is a diagnostic method used mostly in material science to investigate solid-state materials’ microstructure by measuring the positron lifetime in the material. Typical analog electronics-based PALS experiment is complicated to set up.
Ming Fang, Nathan Bartholomew, Angela Di Fulvio   +2 more
openaire   +1 more source

Nanovoids in Glasses and Polymers Probed by Positron Annihilation Lifetime Spectroscopy

2011
Nanovoids in As2S3-based glasses (As 2S3, (As2S3)85Ag 15, and (As2S3)85(AgI) 15), a polymer and a As2S3-polymer nanocomposite were studied using the positron annihilation lifetime spectroscopy (PALS) technique. After computer treatment of the PALS data recorded, it was found that only two components τ 1 (short-lived) near 0.2 ns and τ 2 (long-lived ...
Kavetskyy T., Kolev K., Boev V., Petkov P., Petkova T., Stepanov A.   +5 more
openaire   +3 more sources

Development of an Electron-Positron Source for Positron Annihilation Lifetime Spectroscopy

2007
Abstract : The extremely strong fields produced by focusing powerful laser pulses into minute volumes of material enable relativistic effects to be used to generate radiation, to accelerate particles, and to produce electrons and positrons from vacuum.
openaire   +1 more source

Microstructure of Cellulose Studied by Positron Annihilation Lifetime Spectroscopy

Materials Science Forum, 1997
H. Cao, J.P. Yuan, Yan Ching Jean, A. Pekarovicova, R.A. Venditti   +4 more
openaire   +1 more source

Positron Annihilation Lifetime Spectroscopy (PALS)

2014
openaire   +1 more source

Positron Annihilation Lifetime Spectroscopy Study

openaire   +1 more source

Positron annihilation lifetime spectroscopy for ultramicroporosimetry of porous carbons

Carbon
Kei Kubo, Hayato Otsuka, Daisuke Saeki, Ayumi Furuse, Yoshiyuki Hattori, Takuya Hayashi, Piotr Kowalczyk, Toshio Sakai, Katsumi Kaneko   +8 more
openaire   +1 more source

Synthesis and positron annihilation lifetime spectroscopy of nanoporous platinum

2015
openaire   +1 more source

Characterisation of microporous carbons by positron annihilation lifetime spectroscopy

2005
openaire   +1 more source