Details

Autor(en) / Beteiligte

• Lange, J.
• Adamczyk, L.
• Avoni, G.
• Banas, E.
• Brandt, A.
• Bruschi, M.
• Buglewicz, P.
• Cavallaro, E.
• Caforio, D.
• Chiodini, G.
• Chytka, L.
• Cieśla, K.
• Davis, P.M.
• Dyndal, M.
• Grinstein, S.
• Janas, K.
• Jirakova, K.
• Kocian, M.
• Korcyl, K.
• Paz, I. Lopez
• Northacker, D.
• Nozka, L.
• Rijssenbeek, M.
• Seabra, L.
• Staszewski, R.
• Świerska, P.
• Sykora, T.

Titel

Beam tests of an integrated prototype of the ATLAS Forward Proton detector

Ist Teil von

• Journal of instrumentation, 2016-09, Vol.11 (9), p.P09005-P09005

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The ATLAS Forward Proton (AFP) detector is intended to measure protons scattered at small angles from the ATLAS interaction point. To this end, a combination of 3D Silicon pixel tracking modules and Quartz-Cherenkov time-of-flight (ToF) detectors is installed 210 m away from the interaction point at both sides of ATLAS. Beam tests with an AFP prototype detector combining tracking and timing sub-detectors and a common readout have been performed at the CERN-SPS test-beam facility in November 2014 and September 2015 to complete the system integration and to study the detector performance. The successful tracking-timing integration was demonstrated. Good tracker hit efficiencies above 99.9% at a sensor tilt of 14[degrees], as foreseen for AFP, were observed. Spatial resolutions in the short pixel direction with 50 [mu]m pitch of 5.5 + or - 0.5 [mu]m per pixel plane and of 2.8 + or - 0.5 [mu]m for the full four-plane tracker at 14[degrees] were found, largely surpassing the AFP requirement of 10 [mu]m. The timing detector showed also good hit efficiencies above 99%, and a full-system time resolution of 35+ or -6 ps was found for the ToF prototype detector with two Quartz bars in-line (half the final AFP size) without dedicated optimisation, fulfilling the requirements for initial low-luminosity AFP runs.