Precise measurement and analysis of neutron transmission through /sup 232/Th. [6. 0 MeV to 0. 1 MeV]

Conference · Tue Jan 01 00:00:00 EST 1980

OSTI ID:5051655

Olsen, D K; Ingle, R W; Portney, J L

Three sets of transmission time spectra through up to eight samples of /sup 232/Th have been measured for neutron energies from 6.0 MeV to 0.1 MeV by use of a flight-time technique over 22- and 40-m path lengths, the ORELA pulsed neutron source, and a 1-mm-thick lithium glass detector. The resulting total cross section from 0.1 to 20.0 eV seems to be smaller than that contained in the ENDF/B-V evaluation. Least-squares analysis of the transmissions from 9 to 440 eV using a multilevel Breit-Wigner formalism results in neutron widths consistent with those previously reported. An average radiation width of 25.2 MeV is obtained for 19 low-energy s-wave resonances. 3 figures, 5 tables.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5051655
• Report Number(s): CONF-800942-8; TRN: 80-017514
• Resource Relation: Conference: ANS topical meeting on 1980 advances in reactor physics and shielding, Sun Valley, ID, USA, 14 Sep 1980
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NEUTRON REACTIONS
TOTAL CROSS SECTIONS
NEUTRONS
TRANSMISSION
THORIUM
NEUTRON TRANSPORT
THORIUM 232 TARGET
THORIUM 233
ENERGY LEVELS
BREIT-WIGNER FORMULA
EV RANGE
EXPERIMENTAL DATA
KEV RANGE
LEAST SQUARE FIT
LEVEL WIDTHS
MILLI EV RANGE
RESONANCE
S WAVES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CROSS SECTIONS
DATA
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVEN-ODD NUCLEI
FERMIONS
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
INFORMATION
ISOTOPES
MAXIMUM-LIKELIHOOD FIT
METALS
MINUTES LIVING RADIOISOTOPES
NEUTRAL-PARTICLE TRANSPORT
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
NUMERICAL SOLUTION
PARTIAL WAVES
RADIATION TRANSPORT
RADIOISOTOPES
TARGETS
THORIUM ISOTOPES
652025* - Nuclear Properties & Reactions
A=220 & above
Experimental- Nuclear Reactions & Scattering- (-1987)
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652023 - Nuclear Properties & Reactions
A=220 & above
Experimental- Energy Levels & Transitions- (-1987)