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HK: Fachverband Hadronen und Kerne

HK 75: Accelerators and Instrumentation I

HK 75.2: Talk

Thursday, March 19, 2009, 17:00–17:15, H-ZO 80

A Prototype for the Electromagnetic Calorimeter of PANDA — •Christof Motzko — Ruhr-Universität-Bochum, Germany

An electromagnetic calorimeter (EMC) consisting of about 16000 lead-tungstate crystals (PWO-crystals) will be build for the PANDA experiment located at the antiproton storage ring of the planned accelerator facility FAIR in Darmstadt. The kinetic energy range of the antiprotons will be 0.83 to 14.1 GeV. To increase the light yield of PWO the EMC will be operated at -25 ^∘C. Large area avalanche photodiodes and vacuum phototriodes are developed for the photo detection.

The presentation will discuss the full scale prototype of the forward endcap EMC. The prototype consists of 192 crystals of 20 cm length forming the inner part of the detector. We are going to test the cooling and the mechanical stability as well as the mounting procedure of the EMC endcap. In addition the prototype allows to test different readout options and to study the long term stability of the EMC.

In this presentation the status of the development of the endcap prototype will be dicussed.

Supported by the BMBF and the EU.