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Prompt-fission-neutron spectra of /sup 233/U, /sup 235/U, /sup 239/Pu and /sup 240/Pu relative to that of /sup 252/Cf. [550 and 850 keV]

Technical Report ·
DOI:https://doi.org/10.2172/5724476· OSTI ID:5724476
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The prompt-neutron-induced-fission spectra of /sup 233/U, /sup 235/U, /sup 239/Pu, and /sup 240/Pu are measured relative to the prompt-spontaneous-fission-neutron spectrum of /sup 252/Cf. The fission of /sup 233/U, /sup 235/U, and /sup 239/Pu is induced by approx. = 550-keV neutrons, and that of /sup 240/Pu, by approx. = 850-keV neutrons. The emitted fission neutrons are observed over the energy range less than or equal to 0.5 to 10.0 MeV by use of time-of-flight techniques. Analysis of the measured values indicates that the average-fission-neutron energies are -123 +- 30 (/sup 233/U), -157 +- 24 (/sup 235/U), -76 +- 29 (/sup 239/Pu), and -46 +- 29 (/sup 240/Pu) keV relative to the energy for /sup 252/Cf. The experimental results are compared with those of ENDF/B-V, and a simple behavior of average-prompt-fission-neutron energies is suggested.

Research Organization:
Argonne National Lab., IL (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
5724476
Report Number(s):
ANL/NDM-50
Country of Publication:
United States
Language:
English

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Related Subjects

652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYON REACTIONS
BARYONS
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DATA
DATA FORMS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FAST FISSION
FAST NEUTRONS
FERMIONS
FISSION
FISSION NEUTRONS
GRAPHS
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
INFORMATION
ISOLATED VALUES
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PLUTONIUM 239 TARGET
PLUTONIUM 240 TARGET
PROMPT NEUTRONS
RADIOISOTOPES
SPECTRA
SPONTANEOUS FISSION
TARGETS
TIME-OF-FLIGHT METHOD
URANIUM 233 TARGET
URANIUM 235 TARGET
YEARS LIVING RADIOISOTOPES