Transfer reactions with heavy elements
Transfer reactions for several transuranium elements are studied. (/sup 248/Cm, /sup 249/Bk, /sup 249/CF, /sup 254/Es), /sup 16,18/O, /sup 20,22/Ne, and /sup 40,48/Ca projectiles are used. The production of neutron-rich heavy actinides is enhanced by the use of neutron-rich projectiles /sup 18/O and /sup 22/Ne. The maxima of the isotopic distributions occur at only 2 to 3 mass numbers larger for /sup 48/Ca than for /sup 40/Ca reactions with /sup 248/Cm. The cross sections decrease rapidly with the number of nucleons transferred. The use of neutron-rich targets favors the production of neutron-rich isotopes. ''Cold'' heavy targets are produced. Comparisons with simple calculations of the product excitation energies assuming binary transfers indicate that the maxima of the isotopic distributions occur at the lightest product isotope for which the energy exceeds the reaction barrier. The cross sections for transfer of the same nucleon clusters appear to be comparable for a wide variety of systems. 23 refs., 4 figs., 4 tabs.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5676506
- Report Number(s):
- LBL-21384; CONF-8604184-2; ON: DE86011316
- Resource Relation:
- Conference: Symposium on 10 years of uranium beam, Darmstadt, F.R. Germany, 2 Apr 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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A systematic study of actinide production from the interactions of heavy ions with sup 248 Cm
Production of heavy actinides from interactions of /sup 16/O, /sup 18/O, /sup 20/Ne, and /sup 22/Ne with /sup 248/Cm
Related Subjects
NEUTRON-RICH ISOTOPES
PRODUCTION
TRANSURANIUM ELEMENTS
TRANSFER REACTIONS
BERKELIUM 249 TARGET
CALCIUM 40 REACTIONS
CALCIUM 48 REACTIONS
CALIFORNIUM 249 TARGET
CROSS SECTIONS
CURIUM 248 TARGET
EINSTEINIUM 254 TARGET
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
HALF-LIFE
NEON 20 REACTIONS
NEON 22 REACTIONS
OXYGEN 16 REACTIONS
OXYGEN 18 REACTIONS
CHARGED-PARTICLE REACTIONS
DATA
DIRECT REACTIONS
ELEMENTS
FUNCTIONS
HEAVY ION REACTIONS
INFORMATION
ISOTOPES
NUCLEAR REACTIONS
NUMERICAL DATA
RADIOISOTOPES
TARGETS
652025* - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)