Cross sections for fast-neutron interaction with Lu, Tb, and Ta isotopes

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.014610· OSTI ID:21386555

Dzysiuk, N; Kadenko, I; Yermolenko, R ^[1]; Koning, A J ^[2]

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1. Taras Shevchenko National University of Kyiv, 64, Volodymyrs'ka Street, 01033, Kyiv (Ukraine)
2. NRG, Post Office Box 25, 1755 ZG Petten (Netherlands)

The cross sections for (n,x) reactions with Lu, Tb, and Ta isotopes were measured at (d,t) neutron energies around 14 MeV with the activation technique using metal foils of natural composition. Additionally, tantalum samples were irradiated with (d,d) neutrons and filtered neutron beams. To ensure an acceptable precision of the results all major sources of uncertainties were taken into account. Calculations of efficiency and correction factors were performed with the Monte Carlo technique. The cross section results obtained for the {sup 175}Lu(n,{alpha}){sup 172}Tm reaction at (d,t) neutron energies are reported for the first time. {sup 181}Ta(n,{gamma}){sup 182}Ta{sup m2} reaction cross sections were also measured for the first time at 1.9, 58.7, and 144.3 keV and at 2.85 MeV. The earlier evaluated cross section upper estimate for the nuclear reaction {sup 159}Tb(n,n{sup '}{alpha}){sup 155}Eu is reported in this article to be one order lower. Some other cross sections were obtained with higher precision. Theoretical calculations of excitation functions were performed with the TALYS-1.0 code and compared with the experimental cross section values.

• OSTI ID: 21386555
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevC.81.014610; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
CORRECTIONS
CROSS SECTIONS
DEUTERON REACTIONS
EFFICIENCY
EUROPIUM 155
EXCITATION FUNCTIONS
FAST NEUTRONS
GAMMA DECAY
INTERACTIONS
KEV RANGE
LUTETIUM 175
MEV RANGE 01-10
MONTE CARLO METHOD
NEUTRON BEAMS
NEUTRON REACTIONS
NUCLEAR REACTIONS
TANTALUM 181
TERBIUM 159
THULIUM 172
BARYON REACTIONS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
DECAY
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EUROPIUM ISOTOPES
FERMIONS
FUNCTIONS
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
LUTETIUM ISOTOPES
MEV RANGE
NEUTRONS
NUCLEAR DECAY
NUCLEI
NUCLEON BEAMS
NUCLEON REACTIONS
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARTICLE BEAMS
RADIOISOTOPES
RARE EARTH NUCLEI
STABLE ISOTOPES
TANTALUM ISOTOPES
TERBIUM ISOTOPES
THULIUM ISOTOPES
YEARS LIVING RADIOISOTOPES