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Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 21: Instrumentation V

HK 21.4: Talk

Tuesday, March 15, 2016, 15:00–15:15, S1/01 A2

Radiation tolerance of microstrip sensors for the CBM Silicon Tracking System — •Ievgeniia Momot1,3, Hanna Malygina1,3, and Johann Heuser2 for the CBM collaboration — 1Goethe-Universität, Frankfurt — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 3KINR, Kyiv, Ukraine

The Silicon Tracking System (STS), the core detector of CBM experiment located in the dipole magnet, provides track reconstruction and momentum determination of charged particles originating from beam-target interactions. The response of double-sided silicon micro-strip sensors to hits by charged particles will be used for the track reconstruction. The radiation load of the CBM experiment is expected to be 1014 1-MeV neq/cm2, which may have significant influence on the detector response. The development of radiation tolerant prototype STS microstrip sensors irradiated up to 1014 1-MeV neq/cm2 will be reviewed. Results on charge collection efficiency studies with the latest silicon sensor prototypes with double metallization or external interstrip cables for connecting strips will be presented.
Supported by HIC for FAIR and HGS-HIRe.

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