Actinide production from xenon bombardments of curium-248

Technical Report · Tue Jan 01 00:00:00 EST 1985

DOI:https://doi.org/10.2172/6042673· OSTI ID:6042673

Welch, R B

Production cross sections for many actinide nuclides formed in the reaction of /sup 129/Xe and /sup 132/Xe with /sup 248/Cm at bombarding energies slightly above the coulomb barrier were determined using radiochemical techniques to isolate these products. These results are compared with cross sections from a /sup 136/Xe + /sup 248/Cm reaction at a similar energy. When compared to the reaction with /sup 136/Xe, the maxima in the production cross section distributions from the more neutron deficient projectiles are shifted to smaller mass numbers, and the total cross section increases for the production of elements with atomic numbers greater than that of the target, and decreases for lighter elements. These results can be explained by use of a potential energy surface (PES) which illustrates the effect of the available energy on the transfer of nucleons and describes the evolution of the di-nuclear complex, an essential feature of deep-inelastic reactions (DIR), during the interaction. The other principal reaction mechanism is the quasi-elastic transfer (QE). Analysis of data from a similar set of reactions, /sup 129/Xe, /sup 132/Xe, and /sup 136/Xe with /sup 197/Au, aids in explaining the features of the Xe + Cm product distributions, which are additionally affected by the depletion of actinide product yields due to deexcitation by fission. The PES is shown to be a useful tool to predict the general features of product distributions from heavy ion reactions.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6042673
• Report Number(s): LBL-19010; ON: DE85007768
• Resource Relation: Other Information: Portions are illegible in microfiche products. Thesis
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
ISOTOPE PRODUCTION
CURIUM 248 TARGET
XENON 129 REACTIONS
DEEP INELASTIC HEAVY ION REACTIONS
XENON 132 REACTIONS
ACTINIDE ISOTOPES
AMERICIUM ISOTOPES
BERKELIUM ISOTOPES
CALIFORNIUM ISOTOPES
CURIUM ISOTOPES
EINSTEINIUM ISOTOPES
EXPERIMENTAL DATA
FERMIUM ISOTOPES
NEPTUNIUM ISOTOPES
PLUTONIUM ISOTOPES
QUASI-FREE REACTIONS
SEPARATION PROCESSES
TRANSFER REACTIONS
CHARGED-PARTICLE REACTIONS
DATA
DIRECT REACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
TARGETS
652025* - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)