Münster 2017 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation IX
HK 44.3: Talk
Thursday, March 30, 2017, 14:45–15:00, F 102
DIRC-based PID for the EIC Central Detector — •Roman Dzhygadlo1, Klaus Peters1,2, Carsten Schwarz1, and Jochen Schwiening1 for the DIRC-at-EIC collaboration — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 2Goethe-Universität Frankfurt
One of the key requirements for the central detector of a future Electron-Ion Collider (EIC) is to provide charged Particle Identification (PID) (e/π, π/K, K/p) over a wide momentum range. It is expected that the PID system will need to include one or more Cherenkov counters to achieve this goal. With a radial size of only a few cm, a DIRC counter (Detector of Internally Reflected Cherenkov light) is an attractive option.
The ongoing R&D investigates ways to extend the momentum coverage of a DIRC counter for the EIC detector by up to 50% beyond the current state of the art. Possible design improvements include a complex focusing system in a form of multi-component lenses, multi-anode sensors with smaller pixels, providing fast single-photon timing in high magnetic fields, a time-based PID algorithm, and chromatic dispersion mitigation.
We will discuss the current status of the design studies with Geant simulations, improvements to the time-based imaging reconstruction, and the results of prototype tests with particle beams.
This work was supported in part by BNL under eRD4 and eRD14.