Belkacem Bacha (Brookhaven National Laboratory)
WEPG08
NSLS-II bunch by bunch BPM development and beam operation
2191
The Radio Frequency System-on-Chip (RFSoC) FPGA-based high-performance bunch-by-bunch beam position monitor (BxB BPM) was developed and commissioned at NSLS-II. The new BxB BPM features a 14-bit 5 Gsps ADC, directly sampling 2 ns four-button signals, and digital signal processing with a synchronized 500 MHz RF reference clock. The BxB BPM provides 32 K points of ADC raw data, 5 K turns for up to 1320 bunch amplitude and position data, 2.6 million turn-by-turn (TxT) data points, 10 K turns of circular buffer, and 10 Hz streaming data. The potential applications include, but are not limited to measuring injection transient, efficiency, ion instability detection, and single/multi-bunch motion analysis. A ~15 μm single-bunch resolution was confirmed with the beam test. This paper will present the beam test results, hardware FPGA firmware architecture, and control system interface for operation.
  • K. Ha, B. Bacha, D. Padrazo Jr, J. Mead, V. Smaluk, Y. Li, Y. Tian
    Brookhaven National Laboratory
  • W. Cheng
    Argonne National Laboratory
  • S. Kongtawong
    Synchrotron Light Research Institute
Paper: WEPG08
DOI: reference for this paper: 10.18429/JACoW-IPAC2024-WEPG08
About:  Received: 17 May 2024 — Revised: 18 May 2024 — Accepted: 18 May 2024 — Issue date: 01 Jul 2024
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote
THPC47
Beam based measurements of titanium coated ceramic chambers at NSLS-II
3101
We summarize recent experimental studies of the impedance and beam-induced heating of titanium-coated ceramic vacuum chambers used in the NSLS-II injection kickers. We installed a spare chamber (SN003) in test section C01, demonstrating that beam-induced power is effectively dissipated in the titanium coating. Equipped with 12 temperature detectors, we measured temperatures and beam currents during operational fill patterns. The results, highlighting the heating of chamber, will be thoroughly presented.
  • A. Khan, G. Bassi, B. Kosciuk, V. Smaluk, R. Todd, B. Bacha
    Brookhaven National Laboratory
Paper: THPC47
DOI: reference for this paper: 10.18429/JACoW-IPAC2024-THPC47
About:  Received: 07 May 2024 — Revised: 17 May 2024 — Accepted: 17 May 2024 — Issue date: 01 Jul 2024
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote