54 citations · 110 across the 6 of their papers we have counts for
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physics.ins-det2015★ 17 cited
Geant4 simulation of the PSI LEM beam line: energy loss and muonium formation in thin foils and the impact of unmoderated muons on the SR spectrometer
Kim Siang Khaw, Aldo Antognini, Paolo Crivelli +5
The PSI low-energy SR spectrometer is an instrument dedicated to muon spin rotation and relaxation measurements. Knowledge of the muon beam parameters such as spatial, kinetic e…
physics.atom-ph2015★ 30 cited
Observation of positronium annihilation in the 2S state: towards a new measurement of the 1S-2S transition frequency
D. A. Cooke, P. Crivelli, J. Alnis +8
We report the first observation of the annihilation of positronium from the 2S state. Positronium (Ps) is excited with a two-photon transition from the 1S to the 2S state where its…