%0 Conference Paper
%A Hetzel, Jan
%A Lehrach, Andreas
%A Breitkreutz, Bernd
%A Grigoryev, Kirill
%A Thelen, Michael
%A Niedermayer, Philipp
%A Gebel, Ralf
%A Kamerdzhiev, Vsevolod
%A Valdau, Yury
%T Final preparation of accelerated and polarised protons at COSY Jülich
%V IPAC 2024
%I JACoW Publishing
%M FZJ-2025-00068
%B Journals of Accelerator Conferences Website (JACoW)
%P 1657-1660 pages0.62 MB
%D 2024
%Z Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.
%X 2023 was the last year of operation for the Cooler Synchrotron (COSY) in Jülich, Germany. To prepare for the extraction of polarized protons at a momentum of 1950 MeV/c to an external target, full advantage of the most recent developments of the COSY control system was taken along with the established hardware of COSY. Challenges in beam development included the operation close to transition energy as well as seven depolarizing resonances (4 intrinsic and 3 imperfection resonances) which have to be crossed during the acceleration. To overcome the intrinsic resonances tune jumps were carried out with the Q-jump quadrupole system of COSY*. To identify the correct time window for the jump, the precise measurement of the tune during the acceleration ramp was used. We present how the recent developments in the control system, along with the established techniques, enabled us to successfully accelerate and extract the polarized beam.
%B 15th International Particle Accelerator Conference
%C 19 May 2024 - 24 May 2024, Nashville, TN (USA)
Y2 19 May 2024 - 24 May 2024
M2 Nashville, TN, USA
%K Accelerator Physics (Other)
%K mc4-hadron-accelerators - MC4: Hadron Accelerators (Other)
%K MC4.A24 - MC4.A24 Accelerators and Storage Rings, Other (Other)
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%R 10.18429/JACOW-IPAC2024-TUPS12
%U https://juser.fz-juelich.de/record/1034956