activity
20172025
most citedDefect Imaging and Detection of Precipitates Using a New Scanning Positron Microbeam

36 citations · 41 across the 7 of their papers we have counts for

collaborators

7 papers

nucl-ex2025

Spectrometry of Captured Highly Charged Ions Produced Following Antiproton Annihilations

F. P. Gustafsson, M. Volponi, J. Zielinski +61

We report a proof-of-principle study demonstrating the first capture and time-of-flight spectrometry of highly charged ions (HCIs) produced following antiproton annihilations in a…

physics.ins-det2024

Real-time antiproton annihilation vertexing with sub-micron resolution

M. Berghold, D. Orsucci, F. Guatieri +63

The primary goal of the AEgIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, a cold ~50K antihydrogen beam has to…

physics.atom-ph2023★ 1 cited

Positronium laser cooling via the - transition with a broadband laser pulse

L. T. Glöggler, N. Gusakova, B. Rienäcker +49

We report on laser cooling of a large fraction of positronium (Ps) in free-flight by strongly saturating the - transition with a broadband, long-pulsed 243 nm alexandri…

hep-ph2023

Antimatter Research: Advances of AEgIS

Benjamin Rienäcker

The AEgIS collaboration is underway to directly measure the gravitational free-fall of neutral antimatter atoms. The experiment recently succeded in producing a pulsed cold antihyd…

physics.ins-det2021

A fiber detector to monitor ortho-Ps formation and decay

Benjamin Rienäcker, Roberto Sennen Brusa, Ruggero Caravita +4

We describe a novel method to use a scintillating fiber detector similar to the Fast Annihilation Cryogenic Tracking (FACT) used at the antimatter experiment AEgIS to monitor the p…

physics.atom-ph2020★ 4 cited

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.…

cond-mat.mtrl-sci2017★ 36 cited

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…