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FCAL COLLABORATION

FCAL Detectors Pair Monitor  · 

Pair Monitor

Pair Monitor is a layer of silicon pixel sensors in front of BeamCal to assist beam tuning.

It is designed to be located at the first layer of BeamCal.

Geometries:

Hole radius (Upstream) 1 cm Hole radius (Downstream) 1.8 cm Router (sensitive area) 10 cm Thickness of sensor layer 0.2 ~ 0.3 mm Tilt angle 7 mrad Pixel size 0.4 mm × 0.4 mm Total number of readout pixel 190000 Table 5: Geometry of Pair Monitor

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