Performance Evaluation of an RFSoC Operating in a 1.25 Tesla Magnetic Field

TL;DR

This study evaluates an RFSoC's performance in a 1.25 Tesla magnetic field, demonstrating its stable operation and minimal performance degradation, supporting its use in high magnetic field environments for high-speed digitization.

Contribution

It provides the first comprehensive assessment of RFSoC operation in strong magnetic fields, confirming its suitability for particle physics experiments.

Findings

Stable operation in 1.25 Tesla magnetic field

Negligible performance degradation observed

Power and memory functions remain unaffected

Abstract

The Belle II experiment at the SuperKEKB collider is preparing for an upgrade after 2027-2028 to handle higher luminosity and increased background rates. A Radio Frequency System-on-Chip (RFSoC) has been identified as a potential candidate for a common front-end upgrade for subsystems requiring high-speed waveform digitization. The RFSoC's ADC and DAC channels were tested across various magnetic field strengths and a few different field orientations. Power consumption and boot memory functionality were also assessed. Results indicate stable operation with negligible performance degradation, suggesting the RFSoC's viability for high-speed digitization tasks in high magnetic field environments.