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HK: Fachverband Hadronen und Kerne
HK 40: Accelerators and Instrumentation I
HK 40.2: Talk
Tuesday, March 17, 2009, 17:00–17:15, H-ZO 80
A custom pixel detector for the PANDA experiment — •Daniela Calvo1, Paolo De Remigis1, Thanushan Kugathasan1,2, Simonetta Marcello1,2, Giovanni Mazza1, Angelo Rivetti1, and Richard Wheadon1 — 1INFN - Sezione di Torino, P. Giuria 1, 10100 Torino, Italy — 2Universita' di Fisica, P. Giuria 1, 10100 Torino, Italy.
For the PANDA Collaboration
In the PANDA experiment, foreseen at the future FAIR facility at GSI, the Micro Vertex Detector (MVD), with a design involving both pixel and microstrip silicon sensors, is envisaged for the detection of secondary vertices from the decay of charmed mesons as well as those from kaons and hyperons.
The primary task of the MVD is the detection of charged particle hits with a resolution that yields an overall spatial accuracy better than the characteristic decay lengths of the involved particles, as D mesons. The MVD must also provide energy loss information to aid particle identification. The wide momentum spectra of the particles, which starts at only a few hundred of MeV/c put strong limits on the material budget and also the radiation hardness is an important issue. Besides the triggerless design asks for particular architecure design for the detector electronics. Therefore, custom solution of the pixel detector for both sensor and front-end chip based on the 130nm CMOS technology is underway.
Results concerning study and characterization of epitaxial silicon sensors and chips using time-over-threshold (TOT) approach will be presented.