What question did this study set out to answer?

The aim is to design a power supply that meets the stringent requirements for beam monitoring systems in radioactive environments.

January 22, 2026Open Access

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Development and Characterization of a Radiation-Tolerant Power Supply for Beam Instrumentation

WVWilliam Vigano CZChristos Zamantzas EEEwald Effinger

Key Points

The aim is to design a power supply that meets the stringent requirements for beam monitoring systems in radioactive environments.
Developed a new power supply using CERN-designed ASICs and radiation-tolerant qualified COTS.
Employed a modular architecture for quick interventions and safe handling.
Conducted prototype characterization to identify issues and mitigation methods.
Achieved low noise and high reliability for the power supply in harsh conditions.
Identified key issues in initial design and provided effective mitigation strategies.
Demonstrated successful prototype testing under expected environmental stresses.

Abstract

CERN’s Beam Instrumentation Group is developing a mini-crate to host the future Beam Loss Monitor (BLM) and Beam Positioning Monitor (BPM) systems acquisition electronics at HL-LHC and SPS accelerators. For this purpose, a new power supply has been designed to meet the low noise requirements, high reliability, and availability standards for these harsh radioactive environments. This design makes use of CERN-developed ASICs and radiation-tolerant qualified COTS and follows a modular architecture for quick interventions and safe handling. The paper presents the design, prototype characterisation results, identified issues, and mitigation methods to achieve the required radiation tolerance.

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Development and Characterization of a Radiation-Tolerant Power Supply for Beam Instrumentation

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