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AbstractAbstract
[en] The measurements of direct importance to the 232Th/233U fuel cycle using neutrons from the Oak Ridge Linear Accelerator Facility are gathered together and discussed. These measurements were done in response to specific data discrepancies, as part of generic programs, and for basic fission physics studies. In particular, completed transmission and capture work on 232Th has yielded the most accurate parameters for the first four s-wave resonances; the largest average capture width, 25.2 MeV; and the largest s-wave strength function of recent measurements. These results allow improved agreement between differential and integral capture rates. Moreover, the ORNL 252Cf anti nu measurement of unprecedented accuracy and 233U anti nu ratio measurement give a 233U prompt anti nu (thermal) of 2.490 +- 0.009 neutron/fission. This result allows a much more satisfactory understanding of the 233U 2200 m/s constants. In addition, a 232Th γ-ray production measurement provides needed cross sections for shielding, and important data for both application and fission physics were obtained from 232Th fission and both 231Pa and 234U fission and total cross section measurements. Data requirements and discrepancies suggested from this work are discussed
Primary Subject
Secondary Subject
Source
1982; 12 p; US-Japan seminar on thorium fuel cycle; Nara (Japan); 18 - 22 Oct 1982; Available from NTIS, PC A02/MF A01 as DE83001953
Record Type
Report
Literature Type
Conference; Numerical Data
Report Number
Country of publication
CALIFORNIUM 252, CAPTURE, CROSS SECTIONS, DIFFERENTIAL CROSS SECTIONS, EXPERIMENTAL DATA, FISSION, LINE WIDTHS, MULTIPLICITY, NEUTRON REACTIONS, NEUTRON TRANSPORT, PROMPT NEUTRONS, PROTACTINIUM 231, REACTOR PHYSICS, RESONANCE, SPONTANEOUS FISSION, THORIUM 232 TARGET, THORIUM CYCLE, TOTAL CROSS SECTIONS, TRANSMISSION, URANIUM 233 TARGET
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, BARYONS, CALIFORNIUM ISOTOPES, DATA, DECAY, ELEMENTARY PARTICLES, EVEN-EVEN NUCLEI, FERMIONS, FISSION NEUTRONS, FUEL CYCLE, HADRON REACTIONS, HADRONS, HEAVY NUCLEI, INFORMATION, ISOTOPES, NEUTRAL-PARTICLE TRANSPORT, NEUTRONS, NUCLEAR DECAY, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, NUCLEONS, NUMERICAL DATA, ODD-EVEN NUCLEI, PROTACTINIUM ISOTOPES, RADIATION TRANSPORT, RADIOISOTOPES, TARGETS, YEARS LIVING RADIOISOTOPES
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