Göttingen 2025 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 8: Diagnostics

AKBP 8.6: Vortrag

Donnerstag, 3. April 2025, 12:15–12:30, ZHG004

Precise Beam Position Characterization for MESA using ALICE Stripline BPM. — •Robin Wolf — Johannes Gutenberg Universität Mainz

In order to ensure precise beam positioning and stability, the MESA accelerator relies on accurate and fast beam position measurements. This study focuses on adapting the ALICE stripline beam position monitor (BPM) for MESA's beam diagnostics. Originating from the ALICE accelerator, which operates at 1.3 GHz, this BPM aligns well with MESA*s frequency.

Initial laboratory testing demonstrated the functional reliability of the BPM, laying the foundation for practical applications. Subsequent deployment in the Mainz Microtron (MAMI) beamline allowed for further evaluation, despite MAMI*s higher operating frequency of 2.45 GHz. By employing a broadband stripline and fast oscilloscope, the ALICE BPM captured time-resolved images of MAMI bunches, providing the first successful diagnostics of this kind. However, observed non-linearities in position data highlighted the need for deeper analysis.

This talk will present the performance outcomes of the ALICE stripline BPM, addressing challenges such as non-linearities, while showcasing its potential for rapid and precise measurements under diverse operational conditions.

Keywords: beam position monitor; stripline BPM; broad band; low q; MESA accelerator