Beam Calorimeter Technologies
  Two different technologies are considered for the Beam Calorimeters of the ILC detector. Simulation studies of the performance have been done for a diamond-tungsten sandwich calorimeter and for a homogeneous heavy element crystal calorimeter with optical fiber readout. Studies of the stability and the linearity of a polycrystalline diamond were done for the diamond-tungsten option. For the heavy crystal option the light yield reduction due to the wavelength shifting fiber readout was studied. 
R. Dollan, Ch. Grah, E. Kuznetsova, W. Lange, W. Lohmann, A. Stahl, K.   Afanaciev, V. Drugakov, I. Emeliantchik