Cross sections of the {sup 143}Nd(n,{alpha}){sup 140}Ce and {sup 147}Sm(n,{alpha}){sup 144}Nd reactions in the MeV neutron energy region
- Frank Laboratory of Neutron Physics, JINR, Dubna 141980 (Russian Federation)
- State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871 (China)
- Nuclear Research Centre, National University of Mongolia, Ulaanbaatar (Mongolia)
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
- University of Lodz, Institute of Physics, Lodz (Poland)
Cross sections and forward/backward ratios in the laboratory reference system were measured for the {sup 143}Nd(n,{alpha}){sup 140}Ce reaction at 4.0, 5.0, and 6.0 MeV and for the {sup 147}Sm(n,{alpha}){sup 144}Nd reaction at 5.0 and 6.0 MeV. A twin-gridded ionization chamber and large-area back-to-back {sup 143}Nd{sub 2}O{sub 3} samples and {sup 147}Sm{sub 2}O{sub 3} samples were employed. Experiments were performed at the 4.5 MV Van de Graaff accelerator of Peking University, China. Fast neutrons were produced through the {sup 2}H(d,n){sup 3}He reaction by using a deuterium gas target. A small {sup 238}U fission chamber was employed for absolute neutron flux determination, and a BF{sub 3} long counter was used as the neutron flux monitor. Present experimental data are compared with previous measurements, evaluations, and model calculations.
- OSTI ID:
- 21293950
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA DECAY
BORON FLUORIDES
CERIUM 140
CROSS SECTIONS
DEUTERIUM
FAST NEUTRONS
FISSION CHAMBERS
HELIUM 3
MEV RANGE 01-10
NEODYMIUM 143 TARGET
NEODYMIUM 144
NEODYMIUM OXIDES
NEUTRON FLUX
NEUTRON REACTIONS
SAMARIUM 147 TARGET
SAMARIUM ADDITIONS
URANIUM 238
VAN DE GRAAFF ACCELERATORS