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RIS citation export for WEP08: Upgrade of the BPM Long Term Drift Stabilization Scheme Based on External Crossbar Switching at PETRA III

AU  - Kube, G.
AU  - Bardorfer, A.
AU  - Bogataj, L.
AU  - Cargnelutti, M.
AU  - Leban, P.
AU  - Oblak, M.O.
AU  - Paglovec, P.
AU  - Repič, B.
AU  - Schmidt-Föhre, F.
AU  - Wittenburg, K.
ED  - Forck, Peter
ED  - Wawrzyniak, Adriana
ED  - Schaa, Volker R.W.
ED  - Kowalski, Grzegorz W.
ED  - Cudek, Agnieszka (SOLARIS, Kraków
TI  - Upgrade of the BPM Long Term Drift Stabilization Scheme Based on External Crossbar Switching at PETRA III
J2  - Proc. of IBIC2022, Kraków, Poland, 11-15 September 2022
CY  - Kraków, Poland
T2  - International Beam Instrumentation Conference
T3  - 11
LA  - english
AB  - PETRA IV at DESY will be an upgrade of the present synchrotron radiation source PETRA III into an ultra low-emittance source with beam emittance of about 20 pm.rad which imposes stringent requirements on the machine stability. In order to measure beam positions and control orbit stability to the required level of accuracy, a high resolution BPM system will be installed which consists of about 800 monitors with the readout electronics based on MTCA.4. In order to fulfill the requested long-term drift requirement (< 1 micron over 7 days), also the BPM cable paths have to be stabilized because of the PETRA-specific machine geometry. To achieve this, the crossbar switching concept was extended such that the analogue switching part is separated from the read-out electronics and brought as close as possible to the BPM pickup. While first measurements were presented before, meanwhile the system has undergone a major revision, especially the external switching matrix changed from a prototype setup to a system close to the final design. This contribution summarizes the latest measurements from PETRA III, demonstrating the high performance of the external stabilization concept.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 395
EP  - 398
KW  - electron
KW  - operation
KW  - electronics
KW  - emittance
KW  - beam-losses
DA  - 2022/12
PY  - 2022
SN  - 2673-5350
SN  - 978-3-95450-241-7
DO  - doi:10.18429/JACoW-IBIC2022-WEP08
UR  - https://jacow.org/ibic2022/papers/wep08.pdf
ER  -