Measurements of double-differential cross sections of charged-particle emission reactions for several structural elements of fusion power reactors by 14.1-MeV incident neutrons
- Osaka Univ., Suita, Osaka (Japan). Dept. of Nuclear Engineering
A two-dimensional energy and time-of-flight charged-particle spectrometer has been developed and used to measure the double-differential cross-section (DDX) data of (n,xp) and (n,x{alpha}) reactions for several elements with 14.1-MeV incident neutrons at OKTAVIAN, the Intense 14-MeV Neutron Source Facility of Osaka University. The DDX data of the {sup 51}V(n, xp), {sup 51}V(n, x{alpha}), {sup nat}Fe(n, xp), {sup nat}Fe(n,x{alpha}), {sup 59}Co(n, xp), {sup 59}Co(n, x{alpha}), {sup nat}Ni(n, x{alpha}), {sup nat}Cu(n, x{alpha}), {sup 93}Nb(n, xp), {sup 93}Nb(n, x{alpha}), and {sup nat}Mo(n, xp) reactions are measured. The angle-integrated energy differential cross-section (EDX) data were deduced from the measured DDX data and compared with other experimental results [except for the {sup 59}Co(n, xp) reaction] and evaluated nuclear data of JENDL fusion file (JENDL-FF). A comparison was also done with the ENDF/B-VI for the total reaction cross sections of all measured reactions except for the {sup nat}Mo(n, xp) reaction and the EDX of the {sup nat}Ni(n, x{alpha}) and {sup nat}Cu(n, x{alpha}) reactions. The theoretical calculations were done by using the SINCROS-II code. The measured data agreed fairly well with other data for almost all the reactions. the JENDL-FF and SINCROS-II data underestimate the measured EDX data for the reactions of {sup 93}Nb(n, x{alpha}) and {sup nat}Mo(n, xp). For the {sup nat}Fe(n, xp), {sup nat}Fe(n, x{alpha}), {sup 59}Co(n, x{alpha}), and {sup nat}Ni(n, x{alpha}) reactions, smaller data are given than other data, i.e., other experimental data, JENDL-FF, and ENDF/B-VI. The SINCROS-II code can reproduce well for both the proton and alpha-particle emission cross-section values.
- OSTI ID:
- 343636
- Journal Information:
- Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Journal Issue: 1 Vol. 132; ISSN NSENAO; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COBALT 59 TARGET
COMPARATIVE EVALUATIONS
COPPER
DIFFERENTIAL CROSS SECTIONS
IRON
MEV RANGE 10-100
MOLYBDENUM
NEUTRON REACTIONS
NICKEL
NIOBIUM 93 TARGET
NUCLEAR DATA COLLECTIONS
PRECOMPOUND-NUCLEUS EMISSION
THERMONUCLEAR REACTOR MATERIALS
VANADIUM 51 TARGET