Run II Luminosity Monitor

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Design Overview

The D0 Run II Luminosity Monitor consists of two arrays of plastic scintillation counters located on the inside faces of the end-cap calorimeters, ~135 cm from the center of the D0 detector along the z direction (beam axis), and arranged symmetrically about the beam pipe. The detector covers a region in the pseudorapidity of 2.7 < |h| < 4.4.

Each of the Luminosity Monitor arrays consists of 24 identical 5/8'' thick BC-408 scintillator wedges, with Hamamatsu 1'' diameter fine-mesh photomultiplier tubes (R5505) mounted directly on the faces. The counters will be located in a region where the magnetic field maps indicate a nearly axial magnetic field of ~ 1 Tesla.

• Side view of the Luminosity Monitor at the D0 detector (.ps file)
• Schematic drawing of the Luminosity Monitor design with photomultipliers mounted of the face of wedge-shaped scintillators

• Picture of the wedge counters

• Picture of the detector: inside (added 5/4/2000)

• Report of the Review Panel for the Upgrade Luminosity Monitor II
• 12/8/97
• Luminosity Monitor Technical Design Report
• D0note 3320
• 10/21/97
• Author(s): A. Lo, C. Miao, R. Partridge
• Study of the Run II Luminosity Monitor Counter Design
• D0note 3319
• 3/5/98
• Author(s): Chyi-Chang Miao, Richard Partridge
• A Proposal for the D0 Upgrade Luminosity Monitor
• D0note 2860
• 2/23/96
• Author(s): Bantly,Brandt, Guida Jan, Partridge, Tartaglia

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This work is supported by the Brown University and by the Department of Energy.
For problems or questions regarding this web contact cmiao@hep.brown.edu.
Last updated: June 10, 1999.