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Monte carlo simulations of the n-TOF lead spallation target with the Geant4 toolkit : A benchmark study
(EDP Sciences, 2017-09-13)
Monte Carlo (MC) simulations are an essential tool to determine fundamental features of a neutron beam, such as the neutron flux or the γ-ray background, that sometimes can not be measured or at least not in every position ...
High accuracy 234U(n,f) cross section in the resonance energy region
(EDP Sciences, 2017-09-13)
New results are presented of the 234U neutron-induced fission cross section, obtained with high accuracy in the resonance region by means of two methods using the 235U(n,f) as reference. The recent evaluation of the 235U(n,f) ...
The n-TOF facility : Neutron beams for challenging future measurements at CERN
(EDP Sciences, 2017-09-13)
The CERN n-TOF neutron beam facility is characterized by a very high instantaneous neutron flux, excellent TOF resolution at the 185 m long flight path (EAR-1), low intrinsic background and coverage of a wide range of ...
Characterization of the n-TOF EAR-2 neutron beam
(EDP Sciences, 2017-09-13)
The experimental area 2 (EAR-2) at CERNs neutron time-of-flight facility (n-TOF), which is operational since 2014, is designed and built as a short-distance complement to the experimental area 1 (EAR-1). The Parallel Plate ...
Time-of-flight and activation experiments on 147Pm and 171Tm for astrophysics
(EDP Sciences, 2017-09-13)
The neutron capture cross section of several key unstable isotopes acting as branching points in the s-process are crucial for stellar nucleosynthesis studies, but they are very challenging to measure due to the difficult ...
Measurement of the 240Pu(n,f) cross-section at the CERN n-TOF facility : First results from experimental area II (EAR-2)
(EDP Sciences, 2017-09-13)
The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear ...
7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN
(EDP Sciences, 2017-09-13)
The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called "Spite plateau" ...
Fission Fragment Angular Distribution measurements of 235U and 238U at CERN n-TOF facility
(EDP Sciences, 2016-03-15)
Neutron-induced fission cross sections of 238U and 235U are used as standards in the fast neutron region up to 200 MeV. A high accuracy of the standards is relevant to experimentally determine other neutron reaction cross ...