Measurements of the /sup 238/U capture cross section and self-indication ratio for incident neutron energies from 5 eV to 10 keV

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6045134

Yang, J T

The Oak Ridge Electron Linear Accelerator (ORELA) was utilized as the pulsed neutron source for measurements of the /sup 238/U neutron capture cross section and self-indication ratio by the time-of-flight technique. Capture gamma rays were detected by four non-hydrogenous (C/sub 6/F/sub 6/) scintillation detectors. The incident neutron flux was monitored by a /sup 10/BF/sub 3/ ionization chamber. The cross section was normalized by the saturated resonance technique. Extensive tests of the pulse-height weighting technique for total energy detector (TED) were performed to validate the experimental results. The experimental results were compared with theoretical computations of the capture yield and self-indication ratio based on the neutron resonance parameters prescribed by the ENDF/B-V evaluation. It was found that the neutron capture yield and self-indication ratio measurements performed in this work validate the results of the ENDF/B-V evaluation within the bounds of the experimental uncertainties.

• Research Organization: Tennessee Univ., Knoxville (USA)
• OSTI ID: 6045134
• Country of Publication: United States
• Language: English

Related Subjects

652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CAPTURE
COMPUTER CODES
CROSS SECTIONS
DATA
E CODES
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EXPERIMENTAL DATA
GAMMA SPECTRA
HADRON REACTIONS
INFORMATION
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
SPECTRA
TARGETS
URANIUM 238 TARGET