36 citations · 36 across the 1 of their papers we have counts for
4 papers
Absolute fraction of emitted Ps determined by GEANT4 supported analysis of gamma spectra
Benjamin Rienäcker, Thomas Gigl, Giancarlo Nebbia +2
The fraction of positronium (Ps) emitted from a surface of a germanium single crystal at high temperature is usually assumed to approach unity at zero positron implantation energy.…
Breakdown of the Arrhenius Law of the Temperature Dependent Vacancy Concentration in fcc-Lanthanum
Lucian Mathes, Thomas Gigl, Michael Leitner +1
We measured the temperature dependent equilibrium vacancy concentration using in-situ positron annihilation spectroscopy in order to determine the enthalpy and entropy…
Impact of Oxygen Diffusion on Superconductivity in YBaCuO Thin Films Studied by Positron Annihilation Spectroscopy
M. Reiner, T. Gigl, R. Jany +2
The oxygen deficiency in YBaCuO (YBCO) plays a crucial role for affecting high-temperature superconductivity. We applied (coincident) Doppler broadening spectro…
Defect Imaging and Detection of Precipitates Using a New Scanning Positron Microbeam
Thomas Gigl, Lukas Beddrich, Marcel Dickmann +4
We report on a newly developed scanning positron microbeam based on threefold moderation of positrons provided by the high intensity positron source NEPOMUC. For brightness enhance…