Berlin 2024 – scientific programme

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O: Fachverband Oberflächenphysik

O 4: New Methods: Experiments

O 4.1: Talk

Monday, March 18, 2024, 10:30–10:45, MA 005

Record breaking resolution in cold antimatter detection using inexpensive hardware. — Francesco Guatieri and •Michael Berghold — Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748 Garching, Germany

Modern beam facilities can provide two species of low-energy antiparticle beams: slow positron beams are available in many laboratories that perform surface studies and defect spectroscopy, while slow antiprotons are produced only by the AD/ELENA facility at CERN. Applications of both beams benefit greatly from the availability of realtime detectors of cold antimatter with a resolution in the scale of microns. Last year we demonstrated how modifying an inexpensive commercial camera sensor allows for the detection of positrons with a resolution that was unprecedented for real time applications. This year we broke another record by applying the same technology to cold antiprotons.

Keywords: Antimatter; Positrons; Antiprotons; CMOS; Imaging