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Accelerator-Based Measurements of Minor Actinides Cross-Sections

#0304


Measurements and Analysis of Basic Nuclear Data for Minor Actinides

Tech Area / Field

  • FIR-NOT/Nuclear and Other Technical Data/Fission Reactors

Status
8 Project completed

Registration date
12.12.1994

Completion date
24.11.1998

Senior Project Manager
Tocheny L V

Leading Institute
FEI (IPPE), Russia, Kaluga reg., Obninsk

Collaborators

  • JAERI, Japan, Tokyo\nLos-Alamos National Laboratory, USA, NM, Los-Alamos

Project summary

PURPOSE OF THE PROJECT:

Measurement of the neutron cross sections, fission fragment and delayed neutron yields for the most important minor actinides which determine the long-lived activity of nuclear radiowaste. Re-evaluation of the recommended data for 237Nр, Am and Cm isotopes on the basis of new experimental data and improved theoretical models.

MAIN DIRECTIONS OF THE PROJECT:

1. Fission cross-sections measurements for Am and Cm isotopes ;

2. Measurements of primary fragment yields for neutron induced fission of 237Nр;

3. Measurements of the inelastic neutron scattering and prompt fission neutron spectra for

4. Analysis of the existing evaluated data discrepancies and development of improved evaluations on the basis of new experimental data and advanced theoretical models;

5. Measurement of delayed neutron yields for neutron induced fission of 237.

SCIENTIFIC SIGNIFICANCE OF THE PROJECT:

More accurate nuclear data for the minor ф are very important for the solution of the problems of nuclear waste management, transmutation and disposal, for the development of advanced nuclear reactors or alternative accelerator-driven facilities for nuclear power production.

COMMERCIAL EFFICIENCY:

More accurate nuclear data will allow to avoid the expensive uncertainties and mistakes at the initial stages of nuclear plants development. Reduction of the design uncertainties is of crucial importance for the selection of the most efficient and safe scenario of the future development of nuclear power237


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