Measurement of the neutrons emitted in the proton-induced fission of sup 209 Bi and sup 238 U at 475 MeV
Journal Article
·
· Physical Review, C (Nuclear Physics); (USA)
- Nuclear Physics Department, Weizmann Institute of Science, Rehovot 76100, Israel (IL)
- Physics Department, University of Alberta, Edmonton, Alberta, Canada T6G 2J1 (CA)
We have measured the number of prefission and postfission neutrons emitted in the fission of {sup 209}Bi and {sup 238}U targets bombarded with 475 MeV protons as a function of the total kinetic energy of the two fission fragments, the fission fragment mass, and the recoil velocity of the excited nucleus prior to fission. The average number of prefission neutrons is approximately equal to the average number of postfission neutrons for both targets and the total number equals {similar to}17. The number of prefission neutrons increases with increasing recoil velocity and their average number is substantially larger than that predicted by the Bohr-Wheeler theory.
- OSTI ID:
- 6915377
- Journal Information:
- Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:3; ISSN 0556-2813; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Direct measurement of prompt neutrons emitted in fission of /sup 226/Ra by 12 MeV protons
BINARY FISSION STUDIES OF HELIUM-ION-INDUCED FISSION OF Bi$sup 209$, Ra$sup 226$, AND U$sup 23$$sup 8$
Neutron-induced fission cross sections of {sup 209}Bi and {sup 238}U in the intermediate energy region
Journal Article
·
Thu Sep 01 00:00:00 EDT 1977
· Phys. Rev., C; (United States)
·
OSTI ID:7281001
BINARY FISSION STUDIES OF HELIUM-ION-INDUCED FISSION OF Bi$sup 209$, Ra$sup 226$, AND U$sup 23$$sup 8$
Journal Article
·
Sun Apr 12 23:00:00 EST 1964
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4073668
Neutron-induced fission cross sections of {sup 209}Bi and {sup 238}U in the intermediate energy region
Conference
·
Fri Dec 30 23:00:00 EST 1994
·
OSTI ID:68320
Related Subjects
652020* -- Nuclear Properties & Reactions
A=220 & above
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BARYON REACTIONS
BARYONS
BISMUTH 209 TARGET
BOHR-WHEELER THEORY
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
CYCLIC ACCELERATORS
CYCLOTRONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EVAPORATION MODEL
EXPERIMENTAL DATA
FERMIONS
FISSION
FISSION NEUTRONS
HADRON REACTIONS
HADRONS
INFORMATION
ISOCHRONOUS CYCLOTRONS
LIQUID SCINTILLATORS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 100-1000
MULTIWIRE PROPORTIONAL CHAMBERS
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE PRODUCTION
PHOSPHORS
POSITION SENSITIVE DETECTORS
PROPORTIONAL COUNTERS
PROTON REACTIONS
RADIATION DETECTORS
STATISTICAL MODELS
TARGETS
TIME-OF-FLIGHT METHOD
TRIUMF CYCLOTRON
URANIUM 238 TARGET
A=220 & above
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BARYON REACTIONS
BARYONS
BISMUTH 209 TARGET
BOHR-WHEELER THEORY
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
CYCLIC ACCELERATORS
CYCLOTRONS
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EVAPORATION MODEL
EXPERIMENTAL DATA
FERMIONS
FISSION
FISSION NEUTRONS
HADRON REACTIONS
HADRONS
INFORMATION
ISOCHRONOUS CYCLOTRONS
LIQUID SCINTILLATORS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 100-1000
MULTIWIRE PROPORTIONAL CHAMBERS
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE PRODUCTION
PHOSPHORS
POSITION SENSITIVE DETECTORS
PROPORTIONAL COUNTERS
PROTON REACTIONS
RADIATION DETECTORS
STATISTICAL MODELS
TARGETS
TIME-OF-FLIGHT METHOD
TRIUMF CYCLOTRON
URANIUM 238 TARGET