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The FIRST experiment at GSI

Abstract : The FIRST (Fragmentation of Ions Relevant for Space and Therapy) experiment at the SIS accelerator of GSI laboratory in Darmstadt has been designed for the measurement of ion fragmentation cross-sections at different angles and energies between 100 and 1000. MeV/nucleon. Nuclear fragmentation processes are relevant in several fields of basic research and applied physics and are of particular interest for tumor therapy and for space radiation protection applications.The start of the scientific program of the FIRST experiment was on summer 2011 and was focused on the measurement of 400MeV/nucleon 12C beam fragmentation on thin (8mm) graphite target.The detector is partly based on an already existing setup made of a dipole magnet (ALADiN), a time projection chamber (TP-MUSIC IV), a neutron detector (LAND) and a time of flight scintillator system (TOFWALL). This pre-existing setup has been integrated with newly designed detectors in the Interaction Region, around the carbon target placed in a sample changer. The new detectors are a scintillator Start Counter, a Beam Monitor drift chamber, a silicon Vertex Detector and a Proton Tagger scintillator system optimized for the detection of light fragments emitted at large angles.In this paper we review the experimental setup, then we present the simulation software, the data acquisition system and finally the trigger strategy of the experiment.
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http://hal.in2p3.fr/in2p3-00691811
Contributor : Sandrine Guesnon <>
Submitted on : Friday, April 27, 2012 - 9:18:49 AM
Last modification on : Friday, June 5, 2020 - 10:52:08 AM

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R. Pleskac, Z. Abou-Haidar, C. Agodi, M.A.G. Alvarez, T. Aumann, et al.. The FIRST experiment at GSI. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2012, 678, pp.130-138. ⟨10.1016/j.nima.2012.02.020⟩. ⟨in2p3-00691811⟩

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