Mainz 2022 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 6: Beam Dynamics 1

AKBP 6.2: Vortrag

Dienstag, 29. März 2022, 14:15–14:30, AKBP-H14

Beam dynamics aspects of RF separated beams at the CERN M2 secondary beam line — •Fabian Metzger^1,2, Johannes Bernhard¹, Markus Brugger¹, Lau Gatignon³, Alexander Gerbershagen¹, Bernhard Ketzer², and Silvia Schuh-Erhard¹ — ¹CERN, Meyrin, Switzerland — ²Helmholtz-Institut für Strahlen- und Kernphysik, University of Bonn, Bonn, Germany — ³University of Lancaster, Lancaster, United Kingdom

Radio-frequency (RF) separation is a technique to enrich the content of a certain particle type within a beam consisting of different species at the same momentum. This technique exploits the different velocities of the different particle types due to their mass difference. The successor of the COMPASS experiment, AMBER, is aiming in its phase 2 for high-intensity, high-purity kaon and antiproton beams which cannot be delivered with the currently existing M2 beam line.

This contribution introduces the principle of RF separation and explains its dependence on different parameters of beam optics and hardware. We discuss particle production rates, beamline transmission principles for specific lines studied, as well as limitations for beam intensity and purity imposed by beam line acceptance and radiation protection. Different beam optics settings have been examined, providing either focused or parallel beams inside the RF cavities. We will discuss the separation and transmission capabilities of the different optics settings for given characteristics of the RF cavities and show preliminary results of the potential purity and intensity of the RF separated beam.