Determination of the 243,246,248Cm thermal neutron induced fission cross sections

Serot, O.; Wagemans, C.; Vermote, S.; Heyse, J.; Soldner, T.; Geltenbort, P.
November 2005
AIP Conference Proceedings;2005, Vol. 798 Issue 1, p182
Conference Proceeding
The minor actinide waste produced in nuclear power plants contains various Cm-isotopes, and transmutation scenarios require improved fission cross section data. The available thermal neutron induced fission cross section data for 243Cm, 246Cm and 248Cm are not very accurate, so new cross section measurements have been performed at the high flux reactor of the ILL in Grenoble (France) under better experimental conditions (highly enriched samples, very intense and clean neutron beam). The measurements were performed at a neutron energy of 5.38 meV, yielding fission cross section values of (1240±28)b for 243Cm, (25±47)mb for 246Cm and (685±84)mb for 248Cm. From these results, thermal fission cross section values of (572±14)b; (12±25)mb and (316±43)mb have been deduced for 243Cm, 246Cm and 248Cm, respectively. © 2005 American Institute of Physics


Related Articles

  • Ternary Fission Induced by Polarized Neutrons. Gönnenwein, F.; Gagarski, A.; Jesinger, P.; Petrov, G.; Mutterer, M.; Trzaska, W.; Nesvizhevsky, V.; Lelievre-Berna, E.; Bunakov, V. // AIP Conference Proceedings;2005, Vol. 769 Issue 1, p870 

    P-odd and T-odd asymmetries in the emission of fragments and light particles have been investigated in ternary fission induced by polarized neutrons. P-odd asymmetries unambiguously point to a violation of parity in the fission process. By contrast, T-odd asymmetries do not necessarily imply a...

  • Measurement of delayed-neutron yield from 237Np fission induced by thermal neutrons. Gundorin, N. A.; Zhdanova, K. V.; Zhuchko, V. E.; Pikelner, L. B.; Rebrova, N. V.; Salamatin, I. M.; Smirnov, V. I.; Furman, V. I. // Physics of Atomic Nuclei;Jun2007, Vol. 70 Issue 6, p975 

    The delayed-neutron yield from thermal-neutron-induced fission of the 237Np nucleus was measured using a sample periodically exposed to a pulsed neutron beam with subsequent detection of neutrons during the time intervals between pulses. The experiment was realized on an Isomer-M setup mounted...

  • FISSION FRAGMENT PROPERTIES AT SCISSION WITH THE GOGNY FORCE. Dubray, N.; Goutte, H.; Berger, J.-F.; Delaroche, J.-P. // International Journal of Modern Physics E: Nuclear Physics;Jan2008, Vol. 17 Issue 1, p72 

    Two-dimensional Hartree-Fock-Bogoliubov (HFB) calculations have been performed from spherical shapes to large deformations with constraints on axial quadrupole and octupole deformations in 238U, 256–260Fm and 226Th actinides. Scission configurations have then been identified in this...

  • THE TRANSPORT COEFFICIENTS OF LARGE SCALE NUCLEAR COLLECTIVE MOTION. Ivanyuk, Fedir // International Journal of Modern Physics E: Nuclear Physics;Jan2008, Vol. 17 Issue 1, p60 

    An approach to the description of slow collective motion at finite excitations based on the linear response theory and locally harmonic approximation is discussed. The method relies on the assumption that the nuclear many-body Hamiltonian can be approximated by a one-body Hamiltonian which in...

  • Prompt Neutron Emission from Fragments in Spontaneous Fission of 244, 248Cm and 252Cf. Vorobyev, A. S.; Dushin, V. N.; Hambsch, F.-J.; Jakovlev, V. A.; Kalinin, V. A.; Laptev, A. B.; Petrov, B. F.; Shcherbakov, O. A. // AIP Conference Proceedings;2005, Vol. 798 Issue 1, p255 

    Neutrons emitted in fission were measured separately for each complementary fragment in correlation with fission fragment energies. Two high efficient Gd-loaded liquid scintillator tanks were used for neutron registration. Fission fragment energies were measured using a twin Frisch gridded...

  • Influence of fission fragment excitation energy on prompt fission neutron observables. Lemaire, S.; Talou, P.; Kawano, T.; Chadwick, M. B.; Madland, D. G. // AIP Conference Proceedings;2005, Vol. 798 Issue 1, p213 

    We have implemented a Monte-Carlo simulation of the statistical decay of fission fragments by sequential neutron emission. In this presentation, we report on some numerical results obtained for the spontaneous fission of 252Cf and neutron-induced fission of 235U at 0.53 MeV neutron energy, and...

  • FROM NEUTRON FLUX REACTOR TO DEUTERON FLUX REACTOR. Li, Xing Z. // AIP Conference Proceedings;7/26/2009, Vol. 1154 Issue 1, p251 

    Comparison between nuclear fission and nuclear fusion shows their similarity and disparity in development. It addresses the importance of the understanding in physics. The wave nature of the deuterons inside the crystal lattice means that the boundary conditions are essential to understand the...

  • Numerical Modeling of Scission Neutrons Emitted During Nuclear Fission. Rizea, M.; Carjan, N. // AIP Conference Proceedings;1/24/2008, Vol. 972 Issue 1, p526 

    We have considered a problem related to nuclear fission, namely the emission of scission neutrons. To study this process we have used the sudden approximation and also a dynamical approach. Numerically, this implies the solution of the Schrödinger equation, both stationary and time-dependent....

  • An Overview of Fission Measurements at LANSCE. Ullmann, John L. // AIP Conference Proceedings;4/17/2008, Vol. 1005 Issue 1, p177 

    Fission measurements have a long history at Los Alamos. This paper reviews the current programs in neutron-induced fission at the Los Alamos Neutron Science Center.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics