Author/Authors :
Baunack، نويسنده , , S. and Balaguer Rيos، نويسنده , , D. and Capozza، نويسنده , , L. and Diefenbach، نويسنده , , J. and Frascaria، نويسنده , , R. and Glنser، نويسنده , , B. and Harrach، نويسنده , , D.v. and Imai، نويسنده , , Y. and Kothe، نويسنده , , R. and Kunne، نويسنده , , R. and Lee، نويسنده , , J.H. and Maas، نويسنده , , F.E. and Mora Espي، نويسنده , , M.C. and Morlet، نويسنده , , M. and Ong، نويسنده , , S. and Schilling، نويسنده , , E. ، نويسنده ,
Abstract :
Sufficient energy resolution is the key issue for the calorimetry in particle and nuclear physics. The calorimeter of the A4 parity violation experiment at MAMI is a segmented calorimeter where the energy of an event is determined by summing the signals of neighboring channels. In this case, the precise matching of the individual modules is crucial to obtain a good energy resolution. We have developed a calibration procedure for our total absorbing electromagnetic calorimeter which consists of 1022 lead fluoride (PbF2) crystals. This procedure reconstructs the single-module contributions to the events by solving a linear system of equations, involving the inversion of a 1022×1022-matrix. The system has shown its functionality at beam energies between 300 and 1500 MeV and represents a new and fast method to keep the calorimeter permanently in a well-calibrated state.
