Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 55: Data, AI, Computing, Electronics VI (DAQ and Trigger)

T 55.3: Vortrag

Mittwoch, 2. April 2025, 16:45–17:00, VG 2.102

On-Board Data Processing for a Mission to Study the Antiproton Content in Earth's Radiation Belts — •Peter Hinderberger, Martin J. Losekamm, Luise Meyer-Hetling, and Stephan Paul — School of Natural Sciences, Technical University of Munich, Garching, Germany

The Earth's magnetic field traps charged particles in the Van Allen radiation belts. We intend to precisely measure the flux of trapped antiprotons with energies of tens to hundreds of MeV using a tracking calorimeter made from scintillating plastic fibers and silicon photomultipliers. The instrument will fit on a compact satellite that will, however, restrict the power, volume, computing capacity, and transmission bandwidth available to our experiment. In addition, a low signal-to-background ratio and high event rates make data acquisition and processing challenging. To address these challenges, we are developing a hardware and software framework based on a field-programmable gate array (FPGA) that can acquire, filter, and compress data efficiently in orbit, exploiting its advantages in low-power parallel computing. Our pipelined multi-stage processing approach is designed to reliably identify, count, and partly reject clearly identifiable background events, and to compress the remaining signal candidates without losses. This minimizes the amount of data that must be transmitted to the ground without impacting our measurement. I present the motivation, current status, and short-term plans of our work. It is funded by the German Research Foundation (DFG, project number 414049180) and under Germany's Excellence Strategy-EXC2094-390783311.

Keywords: Satellite; Astroparticle Physics; Radiation Belts; Antiproton; FPGA