Now showing items 1-13 of 13

• #### 197-Au(n,gamma ) cross section in the unresolved resonance region ﻿

(2011-03-17)
Article
Restricted access - publisher's policy
The cross section of the reaction 197Au(n,γ ) was measured with the time-of-flight technique at the n TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C6D6 (where ...
• #### High-accuracy 233U(n, f ) cross-section measurement at the white-neutron source n TOF from near-thermal to 1 MeV neutron energy ﻿

(2009-10-08)
Article
Restricted access - publisher's policy
The 233U(n,f ) cross section has been measured at the white neutron source n TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from ∼30 meV to 1 MeV neutron energy. ...
• #### Measurement of the neutron-induced fission cross-section of 243Am relative to 235U from 0.5 to 20 MeV ﻿

(2011-12)
Article
Restricted access - publisher's policy
The ratio of the neutron-induced fission cross-sections of 243Am and 235U was measured in the energy range from 0.5 to 20 MeV with uncertainties of ≈4%. The experiment was performed at the CERN n TOF facility using a ...
• #### Measurements of the 90,91,92,93,94,96zr (n, gamma) cross-sections at n_tof ﻿

(2008)
Conference report
Open Access
Neutron capture cross sections for zirconium isotopes have important implications in the field of nuclear astrophysics as well as in the nuclear technology. In particular they play a key role for the determination of the ...
• #### Neutron capture cross section measurements for nuclear astrophysics at CERN n_TOF ﻿

(2005-07)
Article
Restricted access - publisher's policy
A series of neutron capture cross section measurements of interest to nuclear astrophysics have been recently performed at n TOF, the neutron spallation source operating at CERN. The low repetition frequency of the proton ...
• #### Neutron capture cross section of (90)Zr: bottleneck in the s-process reaction flow ﻿

(2008-03-11)
Article
Restricted access - publisher's policy
The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than ...
• #### Neutron reactions and nuclear cosmo-chronology ﻿

(2007-07)
Article
Restricted access - publisher's policy
The -decay of 187Re (t1/2 = 42.3 Gyr) represents a suited cosmo-chronometer for the age of the r-process abundances, since the radiogenic part of the daughter isotope 187Os is defined by the difference between the solar ...
• #### Nuclear physics for the Re/Os clock ﻿

(2008-01)
Article
Restricted access - publisher's policy
Dating the age of the universe by the β-decay of 187Re (t1/2 = 41.2 Gyr) requires the accurate assessment of the s-process reaction flow. The daughter nucleus 187Os as well as its immediate s-only neighbor 186Os are ...
• #### Resonance capture cross section of Pb-207 ﻿

(2006-11)
Article
Restricted access - publisher's policy
The radiative neutron capture cross section of 207Pb has been measured at the CERN neutron time of flight installation n TOF using the pulse height weighting technique in the resolved energy region. The measurement has ...
• #### Status and outlook of the neutron time-of-flight facility n_TOF at CERN ﻿

(2007-08)
Article
Restricted access - publisher's policy
The neutron time-of-flight facility n_TOF at CERN, fully operational since 2002, combines a high instantaneous neutron flux with high energy resolution. The wide energy range and the high neutron flux per time-of-flight ...
• #### The 93-Zr(n,gamma) reaction up to 8 keV neutron energy ﻿

(2013-01-31)
Article
Restricted access - publisher's policy
he (n,gamma) reaction of the radioactive isotope 93Zr has been measured at the n_TOF high-resolution time-of-flight facility at CERN. Resonance parameters have been extracted in the neutron energy range up to 8 keV,yielding ...
• #### The La-139(n,gamma) cross section: key for the onset of the s-process ﻿

(2007-03)
Article
Restricted access - publisher's policy
The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La have been measured relative to 197Au in the energy range of 0.6 eV to 9 keV at the neutron time-of-flight (n TOF) facility ...
• #### The measurement of the Pb-206(n,gamma) cross section and stellar implications ﻿

(2008-01)
Article
Restricted access - publisher's policy
The neutron capture cross section of 206Pb has been measured at the CERN n TOF spectrometer using a setup of two C6D6 detectors. In the energy interval from 1 eV to 600 keV the cross section is dominated by resonances, ...