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 · Sat Sep 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5724476· OSTI ID:5724476

Smith, A; Guenther, P; Winkler, G; McKnight, R

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. (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 5724476
• Report Number(s): ANL/NDM-50; TRN: 80-004844
• Country of Publication: United States
• Language: English

Related Subjects

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