| Article | |
| Title | Beam gas curtain monitor: Vacuum studies for LHC integration and operation |
| Author(s) | Castro Sequeiro, C (CERN) ; Ady, M (CERN) ; Bregliozzi, G (CERN) ; Chatzigeorgiou, N (CERN) ; Churchman, A R (CERN) ; Kersevan, R (CERN) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Pigny, G (CERN) ; Rossi, A (CERN) ; Sameed, M (CERN) ; Schneider, G (CERN) ; Sedlacek, O (CERN) ; Sidorowski, K (CERN) ; Vazquez Pelaez, C (CERN) ; Veness, R (CERN) ; Zygaropoulos, L (CERN) ; Stringer, O (Cockcroft Inst. Accel. Sci. Tech.) ; Webber-Date, A (Cockcroft Inst. Accel. Sci. Tech.) ; Welsch, C P (Cockcroft Inst. Accel. Sci. Tech.) ; Zhang, H (Cockcroft Inst. Accel. Sci. Tech.) ; Forck, P (Darmstadt, GSI) ; Udrea, S (Darmstadt, GSI) |
| Publication | 2024 |
| Number of pages | 10 |
| In: | Phys. Rev. Accel. Beams 27 (2024) 043201 |
| DOI | 10.1103/PhysRevAccelBeams.27.043201 (publication) |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN LHC |
| Abstract | A beam gas curtain (BGC) monitor has been designed to obtain information about the relative position between the LHC proton beam and the hollow electron lens electron beam through a minimally invasive process. Its working principle relies on intersecting the path of both beams with a supersonic gas curtain, introduced transversely into the LHC beamline, to produce a fluorescence signal. As an intermediate project stage (phase II), a preliminary version of the BGC monitor has been installed into the LHC beamline. To ensure the successful integration of the monitor and subsequent operation under LHC ultrahigh vacuum conditions, a series of vacuum studies have been performed. These can be classified as follows: An off-line laboratory test campaign, to assess BGC behavior during pump down and gas injections; simulations and analytical calculations, to evaluate BGC behavior and estimate the impact of its installation and operation in the LHC. This document will briefly present the off-line tests campaign, followed by a more extensive description of the simulations performed. |
| Copyright/License | publication: © 2024 authors (License: CC BY 4.0) |
Corresponding record in: Inspire
Δημιουργία εγγραφής 2024-06-15, τελευταία τροποποίηση 2024-06-15