Commissioning of the testbeam prototype of the CALICE tile hadron calorimeter

The CALICE collaboration is currently developing an engineering prototype of an analog hadron calorimeter for a future linear collider like the ILC. One main task of this prototype is to demonstrate the feasibility of building a realistic detector with fully integrated front-end electronics. To reach the required high jet energy resolution the detector is based on highly segmented read out layers. The signals are sampled by scintillating tiles that are individually read out by silicon photomultipliers. The readout chips are integrated into the calorimeter layers and are optimized for minimal power consumption. An LED system is integrated into each channel of the detector to calibrate the photodetectors. This report presents the realization of a setup of one layer and the performance in a testbeam environment.