Experimental determination of photofission neutron multiplicities for /sup 235/U, /sup 236/U, /sup 238/U, and /sup 232/Th using monoenergetic photons

Journal Article · Thu Jan 31 23:00:00 EST 1980 · Nucl. Sci. Eng.; (United States)

OSTI ID:7047552

Caldwell, J T; Alvarez, R H; Berman, B L; Dowdy, E J; Meyer, P

The prompt neutron multiplicities for photofission of the four isotopes /sup 235/U, /sup 236/U, /sup 238/U, and /sup 232/Th have been measured with monoenergetic photons over the energy range from 5.5 to 18 MeV using the annihilation in flight of fast positrons. The delayed neutron yield has been measured for all four isotopes at 10.9- and 16.8-MeV photon energies. The ratio of first- to second-chance fission has been measured as a function of energy up to 17-MeV excitation energy for /sup 236/U and /sup 238/U photofission.

• Research Organization: University of California, Los Alamos Scientific Laboratory P.O. Box 1663, Los Alamos, New Mexico 87545
• OSTI ID: 7047552
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 73:2; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYONS
BASIC INTERACTIONS
COLLISIONS
DATA
DELAYED NEUTRONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY LEVELS
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
FISSION
FISSION NEUTRONS
FISSION YIELD
HADRONS
INFORMATION
INTERACTIONS
LEPTONS
MASSLESS PARTICLES
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MULTIPLICITY
NEUTRONS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PHOTOFISSION
PHOTON COLLISIONS
PHOTON-POSITRON COLLISIONS
PHOTONS
PHOTONUCLEAR REACTIONS
POSITRON COLLISIONS
POSITRONS
PROMPT NEUTRONS
TARGETS
THORIUM 232 TARGET
URANIUM 235 TARGET
URANIUM 236 TARGET
URANIUM 238 TARGET
YIELDS