The ALFA Roman Pot Detectors of ATLAS
S. Abdel Khalek, B. Allongue, F. Anghinolfi, P. Barrillon, G., Blanchot, S. Blin-Bondil, A. Braem, L. Chytka, P. Conde Mu\'i\~no, M., D\"uren, P. Fassnacht, S. Franz, L. Gurriana, P. Grafstr\"om, M. Heller, M., Haguenauer, W. Hain, P. Hamal, K. Hiller, W. Iwanski, S. Jakobsen
TL;DR
The paper describes the design and implementation of the ATLAS Roman Pot system at the LHC, which measures elastic proton scattering to determine cross-sections and luminosity.
Contribution
It introduces the specific configuration and technology of the Roman Pot detectors used in ATLAS for precise measurements at small angles.
Findings
Successful deployment of four Roman Pot stations
Effective tracking with scintillating fibre detectors
Enhanced measurement capabilities for proton scattering
Abstract
The ATLAS Roman Pot system is designed to determine the total proton-proton cross-section as well as the luminosity at the Large Hadron Collider (LHC) by measuring elastic proton scattering at very small angles. The system is made of four Roman Pot stations, located in the LHC tunnel in a distance of about 240~m at both sides of the ATLAS interaction point. Each station is equipped with tracking detectors, inserted in Roman Pots which approach the LHC beams vertically. The tracking detectors consist of multi-layer scintillating fibre structures readout by Multi-Anode-Photo-Multipliers.
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