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Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 22: Instrumentation VI

HK 22.3: Talk

Tuesday, March 15, 2016, 14:45–15:00, S1/01 A3

Measurement of the CALIFA PETAL response to cosmic-rays and AmBe source — •Han-Bum Rhee, Alexander Ignatov, and Thorsten Kröll for the R3B collaboration — Institut für Kernphysik,TU Darmstadt,Germany

CALIFA is a calorimeter and spectrometer that aims to detect gamma-rays and light charged particles. It is a part of the R3B experiment at GSI and the future FAIR facility. CALIFA is divided into a cylindrical barrel[1] and a forward end-cap[2]. The CALIFA barrel consist of CsI(Tl) scintillating crystals, which are individually read out with Avalanche Photodiodes(APDs). The functional units for the CALIFA demonstrator are called PETALs containing 64 crystals each. The PETALs are built using the same construction procedures, materials and elements as for CALIFA.
In this work, we investigated response of one CALIFA PETAL using high-energy gamma-rays from a AmBe source and atmospheric muons. In addition, we compare the experimental data with simulations using the GEANT4 package in order to verify these.
This work is supported by German BMBF(05P12RDFN8,05P15DFN1),HIC for FAIR and GSI-TU Darmstadt cooperation contract.

[1] R3B Collaboration,Technical Design Report for the CALIFA Barrel, November 2011

[2] R3B Collaboration,Technical Design Report for the CALIFA Endcap, August 2015

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