The ²³⁴U Neutron Capture Cross Section Measurement at the n_TOF Facility

Conference · Tue Jan 01 00:00:00 EST 2008

OSTI ID:978773

Lampoudis, C. ^[1]; Koehler, Paul Edward ^[2]

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1. Aristotle University of Thessaloniki, Greece
2. ORNL

The neutron capture cross-section of {sup 234}U has been measured for energies from thermal up to the keV region in the neutron time-of-flight facility n{_}TOF, based on a spallation source located at CERN. A 4n BaF{sub 2} array composed of 40 crystals, placed at a distance of 184.9 m from the neutron source, was employed as a total absorption calorimeter (TAC) for detection of the prompt {gamma}-ray cascade from capture events in the sample. This text describes the experimental setup, all necessary steps followed during the data analysis procedure. Results are presented in the form of R-matrix resonance parameters from fits with the SAMMY code and compared to the evaluated data of ENDF in the relevant energy region, indicating the good performance of the n{_}TOF facility and the TAC.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 978773
• Resource Relation: Conference: International Conference on Nuclear Data for Science and Technology (ND2007), Nice, France, 20070422, 20070427
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
CALORIMETERS
CAPTURE
CERN
CROSS SECTIONS
DATA ANALYSIS
DETECTION
NEUTRON REACTIONS
NEUTRON SOURCES
NEUTRONS
PERFORMANCE
R MATRIX
RESONANCE
SPALLATION