Investigation of the prompt-neutron spectrum for spontaneously-fissioning /sup 252/Cf
The prompt-fission-neutron spectrum of /sup 252/Cf was investigated. The spectrum was measured with Black Neutron Detectors which have a well known efficiency. Considerations of various issues in such measurements lead to an experiment in which a time-calibration pulser, a random pulser, the neutron detector time-of-flight spectrum, the pulse-shape-discriminator gamma time-of-flight spectrum, and the detector-response spectra were simultaneously recorded for the prompt-fission neutrons, transmission through carbon, and shadowbars in a total-cross-section-type measurement. Corrections and associated uncertainties were applied for a large variety of effects which may have been overlooked in many of the previously reported measurements. Preliminary results indicate deviations from a Maxwellian shape toward a Watt-spectrum shape. Agreement is good with the shape differences relative to a Maxwellian from the recent theoretical calculation by Madland and Nix, however, a lower average energy was found.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States); Tohoku Univ., Sendai (Japan)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6371518
- Report Number(s):
- CONF-820942-29; ON: DE83009085
- Resource Relation:
- Conference: Nuclear data for science and technology international conference, Antwerp, Belgium, 6 Sep 1982; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Improved calculation of the prompt fission neutron spectrum from the spontaneous fission of /sup 252/Cf
Improved calculation of the prompt fission neutron spectrum from the spontaneous fission of /sup 252/Cf: Preliminary results
Related Subjects
CALIFORNIUM 252
PROMPT NEUTRONS
EXPERIMENTAL DATA
NEUTRON SPECTRA
SPONTANEOUS FISSION
TIME-OF-FLIGHT METHOD
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYONS
CALIFORNIUM ISOTOPES
DATA
DECAY
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
FISSION
FISSION NEUTRONS
HADRONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
RADIOISOTOPES
SPECTRA
YEARS LIVING RADIOISOTOPES
652026* - Nuclear Properties & Reactions
A=220 & above
Experimental- Spontaneous & Induced Fission- (-1987)