ATLAS Tile Calorimeter: ITC Scintillators
Responsible institutions: Michigan State University, University
of Texas at Arlington
Responsible persons : R. Miller, Kaushik
De
The Inter-TileCal (ITC) scintillators supplement the Tile Calorimeter
by sampling the energy lost in the inactive materials in the gap between
the Tilecal Barrel and Extended Barrel Calorimeters and in the crack between
the LAr Barrel and End Cap Calorimeters. The phi dimension is divided into
128 cells by scintillators that are aligned with the TileCal modules. The
scintillators are used where the space is too restricted to put absorber
+ scintillator layers.
Plug Extension Scintillators
The extension scintillators sample the showers downstream of the TileCal
central barrel calorimeter after they pass through the LAr electronics,
cables and other materials. The scintillators are divided into cells covering
the eta ranges 1.0-1.1 and 1.1-1.2.
Design
of the ITC Plug Extension Scintillators
Inter-cryostat Scintillators
The Inter-cryostat scintillators sample the showers downstream of the central
LAr barrel calorimeter after they pass through the cryostat wall, cables
and other materials. The scintillators are divided into cells covering
the eta ranges 1.2-1.4 and 1.4-1.6.
Drawings
of the Inter-cryostat Scintillators
Optical Fiber Light Collection
The scintillation light will be collected with WLS fibers that are routed
to a connector on the scintillator modules. Clear optical fibers that plug
into these connectors will transmit the light through the profiles in the
Tilecal plug calorimeter and to the standard PMT/readout electronics in
the Tilecal girder.
Tests of Prototype Scintillators
Prototype scintillators with various WLS fiber configurations are being
tested to optimized the light yield and uniformity.
Tests
of ITC Scintillator Prototyupes
Return
to Tilecal Home page
This page maintained by: - RJM
