Determination of the capture width of the 27. 7 keV s-wave resonance in /sup 56/Fe
The capture width of the 27.7 keV s-wave resonance in /sup 56/Fe has been determined using a setup completely different from previous experiments. A pulsed 3 MV Van de Graaff accelerator and the /sup 7/Li(p,n) reaction served as a neutron source. Capture gamma rays were observed by a Moxon-Rae detector and gold was used as a standard. The samples were positioned at a flight path of only 7.6 - 8.0 cm. This allowed the use of very thin samples avoiding large multiple scattering corrections. Three metallic discs enriched in /sup 56/Fe were used with a thickness between 0.6 and 0.15 mm. Capture events in the detector due to resonance scattered neutrons were discriminated by time-of-flight. The result for the capture width is GAMMA/sub ..gamma../ = 0.99 with a statistical uncertainty of 1.3% and a systematic uncertainty of approx. 5%.
- Research Organization:
- Kernforschungszentrum Karlsruhe GmbH, Germany
- OSTI ID:
- 6259290
- Report Number(s):
- CONF-791058-
- Journal Information:
- NBS Spec. Publ. (U.S.); (United States), Vol. 594; Conference: International conference on nuclear cross sections for technology, Knoxville, TN, USA, 22 Oct 1979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
IRON 56 TARGET
NEUTRON REACTIONS
CAPTURE
CROSS SECTIONS
EXPERIMENTAL DATA
LEVEL WIDTHS
RESONANCE
RESONANCE SCATTERING
S WAVES
BARYON REACTIONS
DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PARTIAL WAVES
SCATTERING
TARGETS
651525* - Nuclear Properties & Reactions
A=39-58
Experimental- Nuclear Reactions & Scattering- (-1987)