Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 46: Poster
HK 46.17: Poster
Donnerstag, 20. März 2014, 16:00–18:00, HZ Poster
Angular distribution measurements in particle-γ coincidences using SONIC&HORUS — •Julius Wilhelmy, Vera Derya, Andreas Hennig, Simon G. Pickstone, Mark Spieker, and Andreas Zilges — Institute for Nuclear Physics, University of Cologne
The combined setup SONIC&HORUS consists of the γ-ray spectrometer HORUS with 14 HPGe detectors and the recently commissioned particle spectrometer SONIC with up to 8 ΔE-E silicon detectors. This setup is used to measure the ejectile of a nuclear reaction (p, d, t, or α) in coincidence with the deexciting γ rays emitted by the recoil nucleus. By requiring a certain ejectile energy (e.g. the excitation of a level), a very clean γ spectrum is obtained, in which only physically related events remain. Measuring the angular correlations between the coincident ejectiles and γ-rays allows spin assignments to excited nuclear levels by comparison to theoretical particle-γ angular correlations.
An overview of the experimental setup will be given and preliminary p-γ angular correlations measured in a recent 92Mo(p,p’γ) experiment will be shown.
Supported by the DFG (ZI 510/4-2).