Jan Wagemans - Academia.edu (original) (raw)
Papers by Jan Wagemans
Nuclear science and engineering: the journal of the American Nuclear Society
The [sup 234]U(n[sub th],f) cross section was determined for the first time at the high-flux reac... more The [sup 234]U(n[sub th],f) cross section was determined for the first time at the high-flux reactor of the Institut Laue-Langevin in Grenoble, yielding a value of (300 [+-] 20) mb. This was only possible due to the combination of a highly enriched [sup 234]U sample with an excellent ...
... J.-L. Lecouey, G. Ban, F.-R. Lecolley, N. Marie and J.-C. Steckmeyer LPC Caen, ENSICAEN/Unice... more ... J.-L. Lecouey, G. Ban, F.-R. Lecolley, N. Marie and J.-C. Steckmeyer LPC Caen, ENSICAEN/Unicersit de Caen/CNRS-IN2P3 Caen, France ... Verdu [16] identified different types of 3D harmonic modes for a critical BWR reactor in unstable conditions in order to study out-of-...
The 26Al(n,α)23Na reaction cross section has been studied at the linear accelerator GELINA of the... more The 26Al(n,α)23Na reaction cross section has been studied at the linear accelerator GELINA of the Institute for Reference Materials and Measurements in Geel, Belgium, and has been determined up to a neutron energy of about 100 keV using the time-of-flight technique. Six resonances could be observed in this energy region,whereas before only one had been identified experimentally. For four of them, resonance parameters such as resonance energy, total width, area, and spin of the state could be determined. From the obtained 26Al(n, α)23Na cross section data, Maxwellian averaged cross section (MACS) values were calculated by numerical integration. Since neutron induced reactions are among the major destruction mechanisms of 26Al in our Galaxy, these new MACS values contribute to a better understanding of the observed 26Al abundance.
The energy dependent 37Ar(n,p)37Cl and 37Ar(n,�)34S reaction cross sections were determined for t... more The energy dependent 37Ar(n,p)37Cl and 37Ar(n,�)34S reaction cross sections were determined for the first time in an experimental effort involving three large facilities: the cyclotron of the UCL (Louvain-la-Neuve, Belgium) where implanted 37Ar samples were produced; the high flux reactor of the ILL (Grenoble, France) where thermal (n,p), (n,�0) and (n,�1) cross sections of (37±4) b, (1070±80) b and (290±50)
The energy dependent 37Ar(n,p)37Cl and 37Ar(n,alpha)34S reaction cross sections were determined f... more The energy dependent 37Ar(n,p)37Cl and 37Ar(n,alpha)34S reaction cross sections were determined for the first time in an experimental effort involving three large facilities: the cyclotron of the UCL (Louvain-la-Neuve, Belgium) where implanted 37Ar samples were produced; the high flux reactor of the ILL (Grenoble, France) where thermal (n,p), (n,alpha_0) and (n,alpha_1) cross sections of (37+/-4)b, (1070+/-80)b and (290+/-50)mb respectively could
This Seminar is the seventh of a series started in 1986. During this meeting, recent achievements... more This Seminar is the seventh of a series started in 1986. During this meeting, recent achievements in experimental and theoretical fission physics were discussed, giving special attention to low-energy fission and its traditional topics such as fission fragment characteristics, ternary fission, fission neutrons and fission cross sections. Also more specialised topics such as e.g. β-delayed fission, γ-ray spectroscopy of fission fragments and fission properties of super-heavy nuclei were discussed. Furthermore, review papers on 35 years of fission research at the Institute Laue-Langevin (Grenoble) and on mechanisms for particle emission during nuclear fission were presented. Finally, due attention was given to new facilities and detectors.
Progress in Nuclear Energy, 2010
The need for more energy in a worldwide scope, as well as the necessity to reduce emission, diver... more The need for more energy in a worldwide scope, as well as the necessity to reduce emission, diversification of energy sources and to preserve the environment equilibrium has renewed the expectations of nuclear energy. Programmes for construction of 3rd and 4th generation reactors, modernization of existing nuclear power plants (NPP), and plant life extension are being developed worldwide. Reactor dosimetry
Nuclear Physics at Border Lines - Proceedings of the International Conference, 2002
Reactor Dosimetry State of the Art 2008 - Proceedings of the 13th International Symposium, 2009
A feasibility study of performing retrospective dosimetry for the Argentinian reactor Atucha I ha... more A feasibility study of performing retrospective dosimetry for the Argentinian reactor Atucha I has been performed. Different samples have been investigated for this pupose, amongst which charpy's prepared from Atucha I base material that have been irradiated in the BR2 reactor at SCK·CEN in an accurately characterised neutron field. The fast neutron fluence was determined using the 54Fe(n,p) reaction, whereas
Nuclear science and engineering: the journal of the American Nuclear Society
The [sup 234]U(n[sub th],f) cross section was determined for the first time at the high-flux reac... more The [sup 234]U(n[sub th],f) cross section was determined for the first time at the high-flux reactor of the Institut Laue-Langevin in Grenoble, yielding a value of (300 [+-] 20) mb. This was only possible due to the combination of a highly enriched [sup 234]U sample with an excellent ...
... J.-L. Lecouey, G. Ban, F.-R. Lecolley, N. Marie and J.-C. Steckmeyer LPC Caen, ENSICAEN/Unice... more ... J.-L. Lecouey, G. Ban, F.-R. Lecolley, N. Marie and J.-C. Steckmeyer LPC Caen, ENSICAEN/Unicersit de Caen/CNRS-IN2P3 Caen, France ... Verdu [16] identified different types of 3D harmonic modes for a critical BWR reactor in unstable conditions in order to study out-of-...
The 26Al(n,α)23Na reaction cross section has been studied at the linear accelerator GELINA of the... more The 26Al(n,α)23Na reaction cross section has been studied at the linear accelerator GELINA of the Institute for Reference Materials and Measurements in Geel, Belgium, and has been determined up to a neutron energy of about 100 keV using the time-of-flight technique. Six resonances could be observed in this energy region,whereas before only one had been identified experimentally. For four of them, resonance parameters such as resonance energy, total width, area, and spin of the state could be determined. From the obtained 26Al(n, α)23Na cross section data, Maxwellian averaged cross section (MACS) values were calculated by numerical integration. Since neutron induced reactions are among the major destruction mechanisms of 26Al in our Galaxy, these new MACS values contribute to a better understanding of the observed 26Al abundance.
The energy dependent 37Ar(n,p)37Cl and 37Ar(n,�)34S reaction cross sections were determined for t... more The energy dependent 37Ar(n,p)37Cl and 37Ar(n,�)34S reaction cross sections were determined for the first time in an experimental effort involving three large facilities: the cyclotron of the UCL (Louvain-la-Neuve, Belgium) where implanted 37Ar samples were produced; the high flux reactor of the ILL (Grenoble, France) where thermal (n,p), (n,�0) and (n,�1) cross sections of (37±4) b, (1070±80) b and (290±50)
The energy dependent 37Ar(n,p)37Cl and 37Ar(n,alpha)34S reaction cross sections were determined f... more The energy dependent 37Ar(n,p)37Cl and 37Ar(n,alpha)34S reaction cross sections were determined for the first time in an experimental effort involving three large facilities: the cyclotron of the UCL (Louvain-la-Neuve, Belgium) where implanted 37Ar samples were produced; the high flux reactor of the ILL (Grenoble, France) where thermal (n,p), (n,alpha_0) and (n,alpha_1) cross sections of (37+/-4)b, (1070+/-80)b and (290+/-50)mb respectively could
This Seminar is the seventh of a series started in 1986. During this meeting, recent achievements... more This Seminar is the seventh of a series started in 1986. During this meeting, recent achievements in experimental and theoretical fission physics were discussed, giving special attention to low-energy fission and its traditional topics such as fission fragment characteristics, ternary fission, fission neutrons and fission cross sections. Also more specialised topics such as e.g. β-delayed fission, γ-ray spectroscopy of fission fragments and fission properties of super-heavy nuclei were discussed. Furthermore, review papers on 35 years of fission research at the Institute Laue-Langevin (Grenoble) and on mechanisms for particle emission during nuclear fission were presented. Finally, due attention was given to new facilities and detectors.
Progress in Nuclear Energy, 2010
The need for more energy in a worldwide scope, as well as the necessity to reduce emission, diver... more The need for more energy in a worldwide scope, as well as the necessity to reduce emission, diversification of energy sources and to preserve the environment equilibrium has renewed the expectations of nuclear energy. Programmes for construction of 3rd and 4th generation reactors, modernization of existing nuclear power plants (NPP), and plant life extension are being developed worldwide. Reactor dosimetry
Nuclear Physics at Border Lines - Proceedings of the International Conference, 2002
Reactor Dosimetry State of the Art 2008 - Proceedings of the 13th International Symposium, 2009
A feasibility study of performing retrospective dosimetry for the Argentinian reactor Atucha I ha... more A feasibility study of performing retrospective dosimetry for the Argentinian reactor Atucha I has been performed. Different samples have been investigated for this pupose, amongst which charpy's prepared from Atucha I base material that have been irradiated in the BR2 reactor at SCK·CEN in an accurately characterised neutron field. The fast neutron fluence was determined using the 54Fe(n,p) reaction, whereas