2-7 May 2010
Oustau Calendal Conference Center
Europe/Paris timezone
If you participated in the conference, please consider sending photos and poster contributions, unless done so already!

Design of a disc DIRC detector for the WASA experiment

6 May 2010, 10:00
20m
Oustau Calendal Conference Center

Oustau Calendal Conference Center

Cassis, France

Speaker

Dr Klaus Föhl (Universität Gießen)

Description

It is planned to install a disc DIRC counter in the WASA experiment at the COSY proton storage ring in Juelich. The purpose of this counter is to improve for 400 MeV to 800 MeV protons the kinetic energy measurement in the forward direction, measuring their speed at the few per mille level. The disc DIRC is to be placed downstream of the WASA tracking counters in front of stacked plastic scintillator blocks that with a dE/dx profile continue to provide the particle identification. The segmentation into four quarter-discs allows to incline the radiator relative to the incoming particles and thus lower the threshold velocity for light propagation inside the DIRC radiator. It is planned to prototype two disc DIRC versions, a focussing DIRC and a time-of-propagation DIRC. The construction of two full-scale quarter disc prototypes is foreseen for 2010. With the view of prototyping DIRC detectors in WASA for the upcoming PANDA experiment, we aim to validate the simulation results and gain experience in operating such a detector type in a hadron machine.
Please indicate "poster" or "plenary" session. Final decision will be made by session coordinators. plenary

Primary author

Dr Klaus Föhl (Universität Gießen)

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