Open AccessLifetime measurement around 132Sn with the ν-Ball array
Author(s) -
G. Häfner,
R. Lozeva,
A. Blazhev,
R. Canavan,
D. Étasse,
N. Jovančević,
R.-B. Gerst,
Thilo Kroll,
M. Lebois,
P.H. Regan,
M. Rüdigier,
D. Thisse,
N. Warr,
J. N. Wilson
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012135
Subject(s) - neutron , physics , nuclear physics , fission , tandem accelerator , spectrometer , semiconductor detector , neutron radiation , detector , beam (structure) , optics
Neutron-rich nuclei were studied after fast neutron-induced fission of 238 U and 232 Th at the ALTO facility in Orsay, France. The neutrons were produced with the LICORNE directional neutron source using a pulsed 7 Li beam provided by the Tandem accelerator. The actinide targets were surrounded by the ν -Ball array to measure the de-excitation of fission fragments. The ν -Ball array is a hybrid spectrometer which consists of HPGe detectors (equipped with BGO shielding) and LaBr 3 (Ce) scintillation detectors allowing for high-resolution γ-ray spectroscopy and lifetime measurements in the ns/sub-ns range. This contribution presents preliminary results on 134 Te and 137 I populated in the 238 U(n,f) reaction.