Actinides produced by /sup 12/C + /sup 242/Pu and /sup 16/O + /sup 238/U reactions

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.909· OSTI ID:5106016

Shinohara, N; Usuda, S; Ichikawa, S; Suzuki, T; Magara, M; Okashita, H; Yoshikawa, H; Horiguchi, T; Iwata, Y; Shibata, S; others, and

The cross sections for /sup 250/Fm, /sup 244-246/Cf, /sup 242-244/Cm, and /sup 242/Am/sup g-italic/ produced by the /sup 12/C+ /sup 242/Pu and the /sup 16/O+ /sup 238/U reactions leading to the same compound nucleus of /sup 254/Fm have been measured by using radiochemical methods. The excitation functions show that the difference between the /sup 12/C+ /sup 242/Pu and the /sup 16/O+ /sup 238/U reactions can be attributed mainly to the Coulomb barriers. Our results were compared with others reported previously for /sup 22/Ne+ /sup 232/Th, /sup 12/C+ /sup 238/U, /sup 12/C+ /sup 240,241/Pu, /sup 13/C+ /sup 241/Pu, /sup 16/O+ /sup 233/U, and /sup 16/O+ /sup 242/Pu reaction systems, and support a mechanism involving transfer of ..cap alpha..-particle clusters (C,Be,He) from projectile to target for the production of Cf and Cm isotopes.

• Research Organization: Department of Chemistry, Japan Atomic Energy Research Institute, Ibaraki, Japan
• OSTI ID: 5106016
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
653007 -- Nuclear Theory-- Nuclear Models-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALINE EARTH METALS
ALPHA DECAY RADIOISOTOPES
ALPHA PARTICLES
AMERICIUM 242
AMERICIUM ISOTOPES
BERYLLIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CARBON
CARBON 12 REACTIONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CHEMICAL ANALYSIS
CLUSTER MODEL
COMPOUND-NUCLEUS REACTIONS
COULOMB FIELD
CROSS SECTIONS
CURIUM ISOTOPES
ELECTRIC FIELDS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-EVEN NUCLEI
EXCITATION FUNCTIONS
FERMIUM 250
FERMIUM 254
FERMIUM ISOTOPES
FLUIDS
FUNCTIONS
GASES
HEAVY ION REACTIONS
HEAVY NUCLEI
HELIUM
HOURS LIVING RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE PRODUCTION
ISOTOPES
MATHEMATICAL MODELS
METALS
MINUTES LIVING RADIOISOTOPES
NONMETALS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
OXYGEN 16 REACTIONS
PLUTONIUM 242 TARGET
QUANTITATIVE CHEMICAL ANALYSIS
RADIOCHEMICAL ANALYSIS
RADIOISOTOPES
RARE GASES
TARGETS
URANIUM 238 TARGET