3 papers
physics.acc-ph2026
Moderator Modeling for High Intensity Slow Positron Sources
Sophie Crisp, Ryland Goldman, Spencer Gessner
Slow positron beams enable diverse applications, from surface-sensitive materials studies to positronium physics, but progress is limited by source intensity and brightness. In lin…
physics.acc-ph2025
Moderator Simulation for the Compact Positron Source at NLCTA
Ryland Goldman, Sophie Crisp, Spencer Gessner
Positron moderation is a key part of the production of slow positrons. This paper examines G4beamline simulations of various moderator designs and the addition of a radiofrequency…
physics.acc-ph2025
Start-To-End Simulations of a Compact, Linac-Based Positron Source
Sophie Crisp, Ryland Goldman, Arif Ismail +1
Slow positrons are increasingly important to the study of material surfaces. For these kinds of studies, the positrons must have low emittance and relatively high brightness. Unfor…