Actinides produced by /sup 12/C + /sup 242/Pu and /sup 16/O + /sup 238/U reactions
Creators
- 1. Department of Chemistry, Japan Atomic Energy Research Institute, Ibaraki, Japan
Description
The cross sections for /sup 250/Fm, /sup 244-246/Cf, /sup 242-244/Cm, and /sup 242/Am/sup g/ 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 α-particle clusters (C,Be,He) from projectile to target for the production of Cf and Cm isotopes
Additional details
Publishing Information
- Journal Title
- Phys. Rev., C
- Journal Volume
- 34
- Journal Issue
- 3
- Series
- Phys. Rev., C.
- Journal Page Range
- 909-913
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18017387
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ALPHA PARTICLES; AMERICIUM 242; BERYLLIUM; CALIFORNIUM ISOTOPES; CARBON; CARBON 12 REACTIONS; CLUSTER MODEL; COMPOUND-NUCLEUS REACTIONS; COULOMB FIELD; CURIUM ISOTOPES; EXCITATION FUNCTIONS; FERMIUM 250; FERMIUM 254; HELIUM; ISOTOPE PRODUCTION; OXYGEN 16 REACTIONS; PLUTONIUM 242 TARGET; RADIOMETRIC ANALYSIS; URANIUM 238 TARGET
- Descriptors DEC
- ACTINIDE NUCLEI; ALKALINE EARTH METALS; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHARGED PARTICLES; CHEMICAL ANALYSIS; ELECTRIC FIELDS; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; FERMIUM ISOTOPES; HEAVY ION REACTIONS; HEAVY NUCLEI; HELIUM IONS; HOURS LIVING RADIOISOTOPES; IONIZING RADIATIONS; IONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATHEMATICAL MODELS; METALS; MINUTES LIVING RADIOISOTOPES; NONMETALS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; ODD-ODD NUCLEI; QUANTITATIVE CHEMICAL ANALYSIS; RADIATIONS; RADIOISOTOPES; RARE GASES; SECONDS LIVING RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTO; TARGETS; YEARS LIVING RADIOISOTOPES