Heidelberg 2015 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 60: Instrumentation 18

HK 60.1: Gruppenbericht

Donnerstag, 26. März 2015, 17:00–17:30, M/HS2

The in-beam tracking detectors for R3B — •Stefanos Paschalis¹, Michael Heil², Jacob Johansen¹, Thomas Aumann^1,2, Heiko Scheit¹, and Anatoly Krivshich³ for the R3B collaboration — ¹Institut für Kernphysik, Technische Universität, D 64289 Darmstadt, Germany — ²GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany — ³PNPI St. Petersburg, 188300 Gatchina, Russia

The R3B experiment is part of the NUSTAR pillar at FAIR. One of the great strengths of the R3B experiment is the kinematically complete measurement of reactions with exotic ions with energies of up to 1 AGeV. Key components of the R3B experiment are the neutron detector NeuLAND, the γ and charge-particle calorimeter CALIFA, the Si Tracker and the in-beam tracking detectors. A cornerstone instrument of the setup is the new dipole magnet (GLAD) which bends and momentum analyses the high-rigidity beams. A precise tracking of the charged particles through the magnetic field is crucial to resolve the masses of heavy ions and measure the momentum of the fragments with high resolution. In this contribution we present the technical design details of the in-beam tracking detectors that will be used in the R3B experiment together with recent results obtained from in-beam prototype testing. In particular, we discuss Si detectors, detectors based on plastic-scintillator fibers and paddles, straw-tube gas detectors and the overall performance of the system. This work is supported by HIC for FAIR, GSI-TU Darmstadt cooperation, and the BMBF project 05P12RDFN8.