TY  - CONF
AU  - Sedláček, Ondrej
AU  - Ady, Marton
AU  - Castro Sequeiro, Cristina
AU  - Churchman, Ashley
AU  - Forck, Peter
AU  - Mazzoni, Stefano
AU  - Sameed, Muhammed
AU  - Schneider, Gerhard
AU  - Sidorowski, Krystian
AU  - Stringer, Oliver
AU  - Udrea, Serban
AU  - Veness, Raymond
AU  - Welsch, Carsten
AU  - Zhang, Hao
A3  - Forck, Peter
A3  - Wawrzyniak, Adriana
A3  - Schaa, Volker R. W.
A3  - Kowalski, Grzegorz W.
A3  - Cudek, Agnieszka
TI  - HL-LHC Beam Gas Fluorescence Studies for Transverse Profile Measurement
CY  - Geneva, Switzerland
PB  - JACoW Publishing
M1  - GSI-2025-00430
SP  - 4 pages
PY  - 2022
N1  - Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license.
AB  - In a gas jet monitor, a supersonic gas curtain is injected into the beam pipe and interacts with the charged particle beam. The monitor exploits fluorescence induced by beam-gas interactions, thus providing a minimally invasive transverse profile measurement. Such a monitor is being developed as part of the High Luminosity LHC upgrade at CERN. As a preliminary study, the fluorescence cross section of relevant gases must be measured for protons at 450 GeV and 6.8 TeV (i.e. the LHC injection and flat top energies). In these measurements, neon, or alternatively nitrogen gas, will be injected into the LHC vacuum pipe by a regulated gas valve to create an extended pressure bump. This work presents the optical detection system that was installed in 2022 in the LHC to measure luminescence cross-section and horizontal beam profile. Preliminary measurements of background light and first signals are presented in this paper.
T2  - 11th International Beam Instrumentation Conference
CY  - 11 Sep 2022 - 15 Sep 2022, Krakow (Poland)
Y2  - 11 Sep 2022 - 15 Sep 2022
M2  - Krakow, Poland
KW  - Accelerator Physics (Other)
KW  - 03 Transverse Profile and Emittance Monitors (Other)
LB  - PUB:(DE-HGF)8
DO  - DOI:10.18429/JACOW-IBIC2022-TUP17
UR  - https://repository.gsi.de/record/357738
ER  -