Exploració per tema "CERN"
Ara es mostren els items 1-20 de 72
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7Be(n , p)7Li reaction and the cosmological lithium problem: measurement of the cross section in a wide energy range at n_TOF at CERN
(American Institute of Physics (AIP), 2018-07-24)
Article
Accés obertWe report on the measurement of the 7Be(n,p)7Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a ... -
7Be(n,alpha) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n TOF facility at CERN
(EDP Sciences, 2016)
Comunicació de congrés
Accés obertThe 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” ... -
Angular distribution in the neutron-induced fission of actinides
(EPJ Web of Conferences, 2013)
Text en actes de congrés
Accés obertAbove 1MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the ... -
Astrophysics at n-TOF facility
(2008)
Text en actes de congrés
Accés obertThe neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several GeV, covering the full energy range of interest for nuclear astrophysics, ... -
Astrophysics at n-TOF facility at CERN
(Institute of Physics (IOP), 2010)
Text en actes de congrés
Accés obertThe neutron time of flight (n_TOF) facility at CERN is a spallation neutron source with white neutron energy spectrum (from thermal to several GeV), covering the full energy range of interest for nuclear astrophysics, in ... -
Be-7(n,alpha)He-4 reaction and the cosmological lithium problem: measurement of the cross section in a wide energy range at n_TOF at CERN
(2016-10-03)
Article
Accés obertThe energy-dependent cross section of the Be7(n,alpha)He4 reaction, of interest for the so-called cosmological lithium problem in big bang nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron ... -
Characterization of the n TOF EAR-2 neutron beam
(EDP Sciences, 2016)
Comunicació de congrés
Accés obertThe 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 ... -
Cross section measurements of 155,157Gd(n,gamma) induced by thermal and epithermal neutrons
(2019-01-28)
Article
Accés obertNeutron capture cross section measurements on 155Gd and 157Gd were performed using the time-of-flight technique at the n_TOF facility at CERN on isotopically enriched samples. The measurements were carried out in the n_TOF ... -
Design of a rail-to-rail OTA in 65 nm CMOS technology for a particle detector sensor
(Universitat Politècnica de Catalunya, 2023-07-02)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Universitat de Barcelona. Institut de Ciències del CosmosIn the context of particle accelerators for experimental physics, the different detectors convert the energy of a determined particle into an electrical current. This electrical current is then processed using a readout ... -
Dissemination of data measured at the CERN n TOF facility
(EDP Sciences, 2016)
Comunicació de congrés
Accés obertThe n TOF neutron time-of-flight facility at CERN is used for high quality nuclear data measurements from thermal energy up to hundreds of MeV. In line with the CERN open data policy, the n TOF Collaboration takes actions ... -
Evaluation of an IP Fabric network architecture for CERN's data center
(Universitat Politècnica de Catalunya, 2018-04-25)
Treball Final de Grau
Accés obert
Realitzat a/amb: European Organization for Nuclear ResearchEl centre de dades del CERN necessita una nova arquitectura de xarxa per incrementar la redundància i per proveir mobilitat de màquines virtuals i aïllament de trànsit. L'arquitectura IP Fabric amb EVPN és evaluada com una ... -
Experimental neutron capture data of 58Ni from the CERN n_TOF facility
(EDP Sciences, 2015)
Comunicació de congrés
Accés obertThe neutron capture cross section of 58Ni was measured at the neutron time of flight facility n_TOF at CERN, from 27 meV to 400 keV neutron energy. Special care has been taken to identify all the possible sources of ... -
Experimental setup and procedure for the measurement of the 7Be(n,p)7Li reaction at n_TOF
(2018-04-11)
Article
Accés obertFollowing the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron ... -
Fission fragment angular distribution measurements of U-235 and U-238 at CERN n_TOF facility
(EDP Sciences, 2015)
Text en actes de congrés
Accés obertNeutron-induced fission cross sections of U-238 and U-235 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 ... -
Fission program at n_TOF
(EPJ Web of Conferences, 2019)
Text en actes de congrés
Accés obertSince its start in 2001 the n_TOF collaboration developed a measurement program on fission, in view of advanced fuels in new generation reactors. A special effort was made on measurement of cross sections of actinides, ... -
Forthcoming (n, gamma) measurements on the Fe and Ni isotopes at CERN n_TOF
(Institute of Physics (IOP), 2009)
Text en actes de congrés
Accés restringit per política de l'editorialAn overview of the past, present and future research activities at the CERN neutron time of flight facility n TOF is given, with special focus on the astrophysical aspects. During the first campaign (Phase I), neutron ... -
High accuracy 234U(n,f) cross section in the resonance energy region
(EDP Sciences, 2016)
Comunicació de congrés
Accés obertNew 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) ... -
High accuracy 235U(n,f) data in the resonance energy region
(EDP Sciences, 2015)
Comunicació de congrés
Accés obertThe 235U neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce ... -
High accuracy U-235(n,f) data in the resonance energy region
(EPJ Web of Conferences, 2015)
Text en actes de congrés
Accés obertThe U-235 neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce ... -
High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV
(Springer Nature, 2022-08-01)
Article
Accés obertU(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,a) standard reactions, with high resolution and accuracy, with a setup based on a stack ...