SPALLATION-FISSION COMPETITION IN HEAVIEST ELEMENTS: TRITION PRODUCTION

Journal Article · Sun Sep 01 00:00:00 EDT 1957 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.107.1311· OSTI ID:4356877

Wade, W H; Gonzalez-Vidal, J; Glass, R A; Seaborg, G T

BS>Stacked foils of Au/sup 197/, Th/sup 232/, and U/sup 238/ were bombarded, in a series of experiments, with 48-Mev He ions, 24-Mev deuterons, and 32-Mev protons. Tritium from each foil was collected and then measured by a gas- counting technique. The qualitative results indicate that high-energy tritons are emitted in relatively large abundance from all targets and with each of the bombarding particles. Cross sections for triton production from fissionable U/ sup 238/ and Th/sup 232/ and from nonfissionable Au/sup 197/ are comparable. The integrated ( alpha ,t) cross sections thus determined for U/sup 238/ and Th/sup 232/ are nearly the same as the integrated cross sections for the "( alpha ,p2n)" reactions as determined by measuring the yield of the product heavy isotopes in radiochemical experiments. All of the facts are consistent with a picture of emission of high-energy tritons (whether due to a stripping, pickup, or other mechanism) in which fissionable intermediate nuclei are formed mainly at levels of excitation below their fission thresholds. (auth)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-12-000608
• OSTI ID: 4356877
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 107; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
BEAMS
CROSS SECTIONS
DEUTERON BEAMS
EFFICIENCY
EMISSION
ENERGY
ENERGY LEVELS
ENERGY RANGE
FISSION
FOILS
GASES
GOLD 197
IRRADIATION
MEASURED VALUES
NEUTRONS
NUCLEAR REACTIONS
PHYSICS
PICK-UP
PRODUCTION
PROTON BEAMS
PROTONS
PULSES
QUANTITY RATIO
RADIOCHEMISTRY
STRIPPING
TARGETS
THORIUM 232
TRITIUM
TRITONS
URANIUM 238