Thermal neutron induced nuclear fission is the most suitable method to produce neutron-rich isotopes (70 A 160) due to the large fission cross section and the high thermal neutron fluxes in modern reactors. Intensities of mass separated neutron rich nuclei of some 10 11 ions/s are expected, e.g. for
RNB production with high-energy neutrons
β Scribed by Evelyne Cottereau
- Book ID
- 104335330
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 139 KB
- Volume
- 701
- Category
- Article
- ISSN
- 0375-9474
No coin nor oath required. For personal study only.
β¦ Synopsis
Fission is a very powerful mechanism to produce neutron-rich beams with energies around the Coulomb barrier. A novel concept has been proposed by J. Nolen: fast neutrons may be used without dissipating too much power in the fissioning target. We will review data both on neutron production and on the fission cross section of 238 U. We will go over the R&D work with the PARRNe collaboration (Production d'Atomes Radioactifs Riches en Neutrons) currently under way at IPN Orsay along with the results obtained within the European program SPIRAL II involving several laboratories (GANIL, IPN Orsay, Louvain-la-Neuve, KVI and JyvΓ€skylΓ€). Finally, we will discuss the different facilities relying on this scheme that have been proposed like Argonne, INFN, SPIRAL II at GANIL.
π SIMILAR VOLUMES
At the fragment separator (FRS) at GSI D armstadt fission studies with a number of secondary beams produced by fragmentation of a 1 A.GeV 238U beam have been performed. Fission-in-flight was induced in a secondary lead target at average secondary-beam kinetic energies of about 400 MeV.A. By measurin
The theoretical model for calculations of the fission product yields in the light-particle induced fission is discussed. A comparison of the production cross sections in fission of 238 U by protons, thermal and fast neutrons, and photons is presented. The results of studies of the very asymmetric fi