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Performance of upstream interaction region detectors for the FIRST experiment at GSI

Abstract : The FIRST (Fragmentation of Ions Relevant for Space and Therapy) experiment at GSI has been designed to study carbon fragmentation, measuring 12C double differential cross sections (∂2σ/∂θ∂E) for different beam energies between 100 and 1000 MeV/u. The experimental setup integrates newly designed detectors in the, so called, Interaction Region around the graphite target. The Interaction Region upstream detectors are a 250 μm thick scintillator and a drift chamber optimized for a precise measurement of the ions interaction time and position on the target. In this article we review the design of the upstream detectors along with the preliminary results of the data taking performed on August 2011 with 400 MeV/u fully stripped carbon ion beam at GSI. Detectors performances will be reviewed and compared to those obtained during preliminary tests, performed with 500 MeV electrons (at the BTF facility in the INFN Frascati Laboratories) and 80 MeV/u protons and carbon ions (at the INFN LNS Laboratories in Catania).
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Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, March 6, 2012 - 9:54:09 AM
Last modification on : Monday, February 10, 2020 - 6:13:10 PM

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Z. Abou-Haidar, C. Agodi, M.A.G. Alvarez, M. Anelli, T. Aumann, et al.. Performance of upstream interaction region detectors for the FIRST experiment at GSI. Journal of Instrumentation, IOP Publishing, 2012, 7, pp.P02006. ⟨10.1088/1748-0221/7/02/P02006⟩. ⟨in2p3-00676714⟩

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