What question did this study set out to answer?

The study aims to design a novel RF pickup to sense displacements of the beam centroid and profile changes.

January 22, 2026Open Access

Study of a novel eight electrodes RF pickup

Key Points

The study aims to design a novel RF pickup to sense displacements of the beam centroid and profile changes.
Designed a novel RF pickup with eight electrodes for enhanced diagnostics.
Conducted analytical and CST simulations to assess performance.
Compared responses using pencil and real beam models from TraceWin simulations.
Performed a sensitivity study on how various parameters impact the pickup response.
The RF pickup effectively senses beam centroid displacements.
CST simulations show varying responses to different beam parameters.
The sensitivity study highlights critical factors affecting measurement accuracy.

Abstract

The IFMIF-DONES facility located at Escúzar in Spain will consist of an accelerator delivering 125 mA of 40 MeV deuterons onto a Lithium target. At the last part of the accelerator, when the beam footprint is almost shaped, different beam diagnostics are considered. In order to protect the machine against changes of the beam and give a safe interlock, a novel RF pickup made of eight electrodes is designed. This RF pickup is designed with the objective to sense displacements of the beam centroid as changes of the beam profile. In this paper a preliminary study is presented based on an analytical and CST simulation approach. Both approaches, considering pencil and real beams from TraceWin simulations, are compared. Next, a sensitivity study of how different parameters affect the response is performed in CST simulations. This work has been carried out within the framework of the EUROfusion Consortium.

Study of a novel eight electrodes RF pickup

Key Points

Abstract

Cite This Study