9 April 2003, J Mocholí Workshop on "LHC Physics with High-Pt Muons in CMS'‘, Bologna, Italy Page 1 Chamber Calibration Bench Status Barrel Muon Alignment Group Calibration of the position monitoring Calibration of the position monitoring elements on the barrel muon chambers for elements on the barrel muon chambers for the CMS experiment: the CMS experiment: First experience First experience The work is supported by The Hungarian Scientific Research Fund OTKA T 026178, T034910, T 043145 The Barrel muon Alignment Collaboration: Institute of Nuclear Research, ATOMKI, Debrecen, Hungary European Laboratory for Particle Physics CERN, Geneva, Switzerland Institute of Experimental Physics of Debrecen University, Debrecen, Hungary Institute for High Energy Physics, Vienna, Austria
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The work is supported by The Hungarian Scientific Research Fund OTKA T 026178, T034910, T 043145
Calibration of the position monitoring elements on the barrel muon chambers for the CMS experiment: First experience. The Barrel muon Alignment Collaboration:. Institute of Nuclear Research, ATOMKI, Debrecen, Hungary European Laboratory for Particle Physics CERN, Geneva, Switzerland - PowerPoint PPT Presentation
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9 April 2003, J Mocholí Workshop on "LHC Physics with High-Pt Muons in CMS'‘, Bologna, Italy Page 1
Calibration of the position monitoring elements on the Calibration of the position monitoring elements on the barrel muon chambers for the CMS experiment:barrel muon chambers for the CMS experiment:
First experienceFirst experience
The work is supported by The Hungarian Scientific Research Fund OTKA T 026178, T034910, T 043145
The Barrel muon Alignment Collaboration:
Institute of Nuclear Research, ATOMKI, Debrecen, Hungary
European Laboratory for Particle Physics CERN,
Geneva, Switzerland
Institute of Experimental Physics of Debrecen University,Debrecen, Hungary
Institute for High Energy Physics,
Vienna, Austria
9 April 2003, J Mocholí Workshop on "LHC Physics with High-Pt Muons in CMS'‘, Bologna, Italy Page 2
1.Every camera on a plate is facing the LEDs on the opposite plate of the bench.2.Automatic measurement of the centroids of the images of the LEDs on the
opposite side by each camera. 3.The data is recorded in the database with date, time, temperature, amounting to
112 measurements altogether.
Measurement of the stability of the bench:
9 April 2003, J Mocholí Workshop on "LHC Physics with High-Pt Muons in CMS'‘, Bologna, Italy Page 7
1. Feet: the principle is OK but a new design is needed to ease the operation (to be discussed). 2. Corner blocks: the hole diameter (nominally L=11 mm Ø8 H7) is often short and/or tight). A temporary solution was found by asking for shorter photogrammetry targets to be made. 3. Pins: In some chambers the pins where the forks are to be fixed are missing.
9 April 2003, J Mocholí Workshop on "LHC Physics with High-Pt Muons in CMS'‘, Bologna, Italy Page 11