Bochum 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 52: Poster
HK 52.18: Poster
Donnerstag, 1. März 2018, 16:30–18:45, Audimax Foyer
Lifetime Measurements at SONIC@HORUS: The Doppler-shift attenuation method using pγ coincidences — •Vera Vielmetter1, Anna Bohn1, Michelle Färber1, Pavel Petkov1,2,3, Simon G. Pickstone1, Sarah Prill1, Mark Spieker1,4, Michael Weinert1, and Andreas Zilges1 — 1Institute for Nuclear Physics, University of Cologne — 2INRNE, Bulgarian Academy of Sciences, Sofia — 3National Institute for Physics and Nuclear Engineering, Bucharest-Magurele — 4NSCL, Michigan State University, MI 48824, USA
Recently, the Doppler-shift attenuation method (DSAM) using pγ coincidences has been established in Cologne as a new technique for measuring lifetimes of excited states in the range of femtoseconds [1]. The SONIC@HORUS setup [2] with 14 HPGe detectors and several silicon detectors is used to extract the centroid energy shifts from proton-gated γ-ray spectra, yielding lifetime values that are independent of feeding contributions. In this poster the (p,p’γ) DSAM technique will be introduced and results of several experiments, such as 96Ru [1], 98Ru, 112,114Sn, 94Zr and 128,130Te, will be shown.
Supported by the DFG (ZI-510/7-1). JW is supported by the Bonn-Cologne Graduate School for Physics and Astronomy.
A. Hennig et al., Nucl. Instr. and Meth. A 794 (2015) 717
S.G. Pickstone et al., Nucl. Instr. and Meth. A 875 (2017) 104-110