Köln 2025 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 55: Structure and Dynamics of Nuclei XII
HK 55.2: Vortrag
Donnerstag, 13. März 2025, 18:00–18:15, HS 2 Physik
Proton range calibration for the R3B-CALIFA calorimeter — •Mrunmoy Jena, Roman Gernhäuser, and Tobias Jenegger for the R3B collaboration — Technische Universität München, Munich, Germany
The CALIFA (CALorimeter for In-Flight detection of gamma rays and high energy charged pArticles) is one of the most important detectors in the R3B (Reactions with Relativistic Radioactive ion Beams) experiment. Being highly segmented and having almost full polar angle coverage (7o < θ < 143o), this detector provides spectroscopic information for gamma rays and charged particle energies varying from 100 keV to about 300 MeV. The MPRB-32 charge sensitive preamplifiers coupled to the detection units can be operated in a low gain (gamma range) or a high gain mode (proton range), enabling a high dynamic range for the energy determination.
This presentation introduces a user-friendly, computer-controlled procedure that carries out an automatic calibration of the entire CALIFA calorimeter over the full dynamic range. The calibration is carried out using a combination of a 22Na radioactive source and electronic pulser signals of known amplitudes.
Supported by BMBF 05P24WO2.
Keywords: CALIFA; R3B; calibration