Measurement of the subthreshold neutron fission cross section of plutonium-240 in the energy range from 10 to 250 keV. [Cross section structure]
The subthreshold fission cross section of /sup 240/Pu was measured in the energy range from 10 to 250 keV, using /sup 235/U as a standard. Neutrons were produced via the /sup 7/Li(p,n) and T(p,n) reaction with the Karlsruhe 3-MV pulsed Van de Graaff accelerator. Fission events were registered by detecting fission neutrons with an NE-213 liquid scintillator with pulse-shape discriminator equipment. The high neutron flux available at flight paths of approx. 67 and 135 mm allowed for a statistical accuracy of 1 to 3% together with a moderate energy resolution of approx. 10 to 20 ns/m. The overall accuracy achieved is between 7 and 9%. The data show a distinct structure in the cross section, as indicated by poor statistics in previous measureents.
- Research Organization:
- Kernforschungszentrum, Karlsruhe, Germany
- OSTI ID:
- 5986396
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 69:1; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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Neutron capture cross section ratios of plutonium-240 and plutonium-242 versus gold-197 in the energy range from 50 to 250 keV
Neutron capture cross-section ratios of /sup 240/Pu, /sup 242/Pu, /sup 238/U, and /sup 197/Au in the energy range from 10 to 90 keV
Related Subjects
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CROSS SECTIONS
DATA
DATA COVARIANCES
DATA FORMS
ENERGY RANGE
EXPERIMENTAL DATA
FISSION
HADRON REACTIONS
INFORMATION
ISOLATED VALUES
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PLUTONIUM 240 TARGET
TARGETS