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Bochum 2018 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 24: Structure and Dynamics of Nuclei IV

HK 24.7: Talk

Tuesday, February 27, 2018, 18:15–18:30, HZO 70

Performance Test of the CALIFA Detector using the 16O(p,2p) reactionRoman Gernhäuser, •Benjamin Heiss, Philipp Klenze, and Felix Stark for the R3B collaboration — Technische Universität München

The 4π-calorimeter CALIFA is one of the major detectors of the R3B-experiment at the upcoming Facility for Antiproton and Ion Research (FAIR) in Darmstadt. This calorimeter with 2464 CsI(Tl) crystals and 96 Phoswich detectors provides a high efficiency, good energy resolution of about 5 % at 662 keV γ energies and a large dynamic range, allowing a simultaneous measurement of γ rays at E > 100 keV and scattered protons up to E < 700 MeV. Especially in the forward section of CALIFA, the Endcap, the highest particle rates and energies paired with highly doppler shifted γ rays are expected. This talk will show first results of an experiment with 3 CALIFA Demontrator Petal detectors at the Bronowice Cyclotron Center in November 2017 in Cracow. This presentation will be on the calibration reaction 1H(p,p) and the 16O(p,2p) in direct kinematics at 200 MeV proton beam energy irradiating a liquid water fiber target. Excitation energy spectra and angular correlation prove the excellent resolution of CALIFA as an ideal tool for QFS studies also in normal kinematics. Supported by BMBF Project 05P15WOFNA.

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