Measurement of resolved resonances of 232Th(n,γ) at the n_TOF facility at CERN
F. Gunsing
(1)
,
G. Aerts
(1)
,
S. Andriamonje
(1)
,
E. Berthoumieux
(1)
,
J. Pancin
(1)
,
L. Perrot
(1)
,
P. Baumann
(2)
,
M. Kerveno
(2)
,
S. Lukic
(2)
,
G. Rudolf
(2)
,
B. Haas
(3)
,
P. Pavlopoulos
(4)
,
C. Stephan
(5)
,
L. Tassan-Got
(5)
,
L. Audouin
(5)
,
L. Ferran
(5)
,
S. Isaev
(1)
Abstract
The yield of the neutron capture reaction 232Th(n,γ) has been measured at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The reduction of the acquired data to the capture yield for resolved resonances from 1 eV to 4 keV is described and compared to a recent evaluated data set. The resonance parameters were used to assign an orbital momentum to each resonance. A missing level estimator was used to extract the s-wave level spacing of D0=17.2±0.9 eV.