Author/Authors :
Adragna، نويسنده , , P. and Antonaki، نويسنده , , A. and Boudagov، نويسنده , , I. and Cavasinni، نويسنده , , V. and Costanzo، نويسنده , , D. and Del Prete، نويسنده , , T. and Dotti، نويسنده , , A. and Fassouliotis، نويسنده , , D. and Giakoumopoulou، نويسنده , , V. and Giokaris، نويسنده , , N. and Guicheney، نويسنده , , C. and Karali، نويسنده , , E. and Khubua، نويسنده , , J. and Lebessi، نويسنده , , M. and Lupi، نويسنده , , A. and ، نويسنده ,
Abstract :
The front-end electronics of the ATLAS hadronic calorimeter (Tile Cal) is housed in a unit, called PMT-Block. The PMT-Block is a compact instrument comprising a light mixer, a PMT together with its divider and a 3-in-1 card, which provides shaping, amplification and integration for the signals. This instrument needs to be qualified before being assembled on the detector. A PMT-Block test bench has been developed for this purpose. This test bench is a system which allows fast, albeit accurate enough, measurements of the main properties of a complete PMT-Block. The system, both hardware and software, and the protocol used for the PMT-Blocks characterization are described in detail in this report. The results obtained in the test of about 10 000 PMT-Blocks needed for the instrumentation of the ATLAS (LHC-CERN) hadronic Tile Calorimeter are also reported.
