Study of {sup 179}Hf{sup m2} excitation

Journal Article · Thu Dec 15 04:00:00 EST 2016 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778816090143· OSTI ID:22614034

Vishnevsky, I. N.; Savrasov, A. N. ^[1]; Mazur, V. M. ^[2]

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1. National Academy of Sciences of Ukraine, Institute for Nuclear Research (Ukraine)
2. National Academy of Sciences of Ukraine, Institute of Electronic Physics (Ukraine)

Isomeric ratios of {sup 179}Hf{sup m2,g} yields in the (γ, n) reaction and the cross section for the {sup 179}Hf{sup m2} population in the (α, p) reaction are measured for the first time at the end-point energies of 15.1 and 17.5 MeV for bremsstrahlung photons and 26 MeV for alpha particles. The results are σ = (1.1 ± 0.11) × 10{sup −27} cm{sup 2} for the {sup 176}Lu(α, p){sup 179}Hf{sup m2} reaction and Y{sub m2}/Y{sub g} = (6.1 ± 0.3) × 10{sup −6} and (3.7 ± 0.2) × 10{sup −6} for the {sup 180}Hf(γ, n){sup 179}Hf{sup m22} reaction at E{sub ep} =15.1 and 17.5 MeV, respectively. The experimental data on the relative {sup 179}Hf{sup m2} yield indicate a single-humped shape of the excitation function for the {sup 180}Hf(γ, n){sup 179}Hf{sup m2} reaction. Simulation is performed using the TALYS-1.4 and EMPIRE-3.2 codes.

• OSTI ID: 22614034
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9-10 Vol. 79; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALPHA PARTICLES
ALPHA REACTIONS
BREMSSTRAHLUNG
COMPUTERIZED SIMULATION
EXCITATION
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
HAFNIUM 179
HAFNIUM 180 TARGET
ISOMER RATIO
LUTETIUM 176 TARGET
MEV RANGE 10-100
PHOTONS
PHOTONUCLEAR REACTIONS