Darmstadt 2016 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 22: Instrumentation VI
HK 22.1: Group Report
Tuesday, March 15, 2016, 14:00–14:30, S1/01 A3
Status of the R3B calorimeter CALIFA — •Max Winkel, Roman Gernhäuser, Benjamin Heiss, Philipp Klenze, and Patrick Remmels for the R3B collaboration — Technische Universtät München
The R3B detector system at the new Facility for Antiproton and Ion Resarch (FAIR) will allow high resolution experiments with the most exotic nuclei at the isospin frontier using kinematically complete measurements. Examples of the physics program to investigate the evolution of nuclear shells and single particle structure far away from stability are quasi-free scattering, Coulomb excitation and knockout reactions.
A crucial component for these purposes is the CALorimeter for In Flight detection of γ-rays and high energy charged pArticles (CALIFA) surrounding the reaction area. The electromagnetic 4π-calorimeter is highly segmented into 2656 scintillation crystals to enable an excellent Doppler reconstruction while maintaining good calorimetric properties. A major challenge is the high dynamic energy range, necessary for various experiments, reaching from E ∼ 100 keV γ rays up to E ∼ 700 MeV protons. This goal is achieved by a dedicated, fully digital readout using a real time signal processing firmware.
In this report, the detector design as well as recent developments and results of various prototype tests are presented, including an R3B pilot experiment involving prototypes of all R3B detectors.
Supported by BMBF (05P12WOFNF, 05P15WOFNA) and GSI (TMLFRG1316).