STAR-Detector

The STAR-detector was built as one component of a 4p-detector setup for the test of the Gerasimov--Drell--Hearn sum rule. The STAR-detector will be employed to determine charged hadronic particle rates at small forward angles and to suppress atomic events. It consists of a scintillator plate and nine concentric scintillator rings with decreasing diameters. The optimized shape of the rings and the lightguides was found through simulations with the Monte Carlo program SIMLIGHT.

Picture Technical Data
    MAMI
  • Total size of the detector: 2000mm x 1700mm x 170 mm
  • nine segmented rings of plastic scintillators each segment is read out by one photomultiplier
  • one rectangular plastic scintillator trigger plate read out by four photomultipliers


More information about the STAR detector and the GDH experiment:


Last modified 9.4.98 by P. Grabmayr