7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

A 3GHz Wall Current Transformer for Very High Bandwidth Beam Current Measurements

MOPCO08
8 Sept 2025, 16:00
2h
Courtyard, Liverpool Guild of Students

Courtyard, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool.
Poster Presentation MC01: Beam Charge and Current Monitors MOPCO

Speaker

Frank Stulle (Bergoz Instrumentation (France))

Description

Non-destructive beam current measurements are a crucial aspect of beam instrumentation in any particle accelerator. Often, these measurements must be capable of distinguishing individual beam pulses. In an increasing number of accelerators, pulse repetition rates reach the GHz range. Consequently, beam current measurement bandwidth must exceed a few GHz. To meet this requirement, a wall current transformer was developed with a bandwidth exceeding 3 GHz. It was tested using a vector network analyzer and with an electron beam at CERN's CLEAR facility. Both measurements showed excellent agreement. We introduce the wall current transformer principle and discuss the measurement results. Additionally, we highlight some challenges that must be addressed when measuring high-frequency signals.

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Authors

Frank Stulle (Bergoz Instrumentation (France)) Pierre Korysko (University of Oxford)

Co-authors

Etienne Touzain (Bergoz Instrumentation (France)) Hervé Bayle (Bergoz Instrumentation (France)) Laurent Dupuy (Bergoz Instrumentation (France)) Roberto Corsini (European Organization for Nuclear Research) Wilfrid Farabolini (European Organization for Nuclear Research)

Presentation materials

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