Castro Sequeiro, C, Ady, M, Bregliozzi, G, Chatzigeorgiou, N, Churchman, AR, Kersevan, R, Lefevre, T, Mazzoni, S, Pigny, G, Rossi, A et al (show 13 more authors)
(2024)
Beam gas curtain monitor: Vacuum studies for LHC integration and operation.
Physical Review Accelerators and Beams, 27 (4).
043201-.
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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.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 15 Apr 2024 07:32 |
| Last Modified: | 23 Apr 2024 10:51 |
| DOI: | 10.1103/physrevaccelbeams.27.043201 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3180312 |
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