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@INPROCEEDINGS{Sedlek:357731,
author = {Sedláček, Ondrej and Ady, Marton and Churchman, Ashley
and Forck, Peter and Mazzoni, Stefano and Rossi, Adriana and
Sameed, Muhammed and Schneider, Gerhard and Sequeiro,
Cristina and Sidorowski, Krystian and Stringer, Oliver and
Udrea, Serban and Veness, Raymond and Webber-Date, Alexander
and Welsch, Carsten and Zhang, Hao},
editor = {Schaa, Volker R. W. and Batten, Tonia and Bree, Michael and
Petit-Jean-Genaz, Christine and Hunter, Darren},
title = {{G}as {J}et-{B}ased {F}luorescence {P}rofile {M}onitor for
{L}ow {E}nergy {E}lectrons and {H}igh {E}nergy {P}rotons at
{LHC}},
address = {Geneva, Switzerland},
publisher = {JACoW Publishing},
reportid = {GSI-2025-00423},
pages = {6 pages},
year = {2023},
note = {Published by JACoW Publishing under the terms of the
Creative Commons Attribution 4.0 International license.},
abstract = {The ever-developing accelerator capabilities of increasing
beam intensity, e.g. for High Luminosity LHC (HL-LHC),
demand novel non-invasive beam diagnostics. As a part of the
HL-LHC project a Beam Gas Curtain monitor (BGC), a gas
jet-based fluorescence transverse profile monitor, is being
developed. The BGC uses a supersonic gas jet sheet that
traverses the beam at 45° and visualizes a two-dimensional
beam-induced fluorescent image. The principle of observing
photons created by fluorescence makes the monitor
insensitive to present electric or magnetic fields.
Therefore, the monitor is well suited for high-intensity
beams such as low-energy electron beam of Hollow Electron
Lens (HEL), and HL-LHC proton beam, either as a profile or
an overlap monitor. This talk will focus on the first gas
jet measured transverse profile of the 7keV hollow electron
beam. The measurements were carried out at the Electron Beam
Test Stand at CERN testing up to 5A beam for HEL. A
comparison with Optical Transition Radiation measurements
shows consistency with the BGC results. The BGC installation
of January 2023 at LHC is shown, including past results from
distributed gas fluorescence tests.},
month = {Sep},
date = {2023-09-10},
organization = {12th International Beam
Instrumentation Conference, Saskatoon
(Canada), 10 Sep 2023 - 14 Sep 2023},
keywords = {Accelerator Physics (Other) / 03 Transverse Profile and
Emittance Monitors (Other)},
cin = {BEA},
cid = {I:(DE-Ds200)BEA-20051214OR061},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)8},
doi = {10.18429/JACOW-IBIC2023-WE3I01},
url = {https://repository.gsi.de/record/357731},
}