Beam Line Detectors Shift

Tagger Hodoscope

The tagger hodoscope consists of 218 counters which are installed behind the focal plane of the tagger magnet. The hodoscope will be used for tuning the orientation of the radiator crystal by measuring the photon beam energy spectrum. This procedure will require involvement of experts and will not be performed by a shift crew members. During data taking, the hodoscope will be used to monitor the beam stability.