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NSR database version of April 27, 2024.

Search: Author = F.Portillo

Found 6 matches.

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2023CO08      Nucl.Instrum.Methods Phys.Res. A1056, 168654 (2023)

A.L.Cooper, S.Hunt, L.Downen, K.Setoodehnia, F.Portillo, C.Marshall, T.B.Clegg, A.E.Champagne, R.Longland

Correlated characterization of 20Ne-implanted targets using nuclear reaction analysis, Rutherford backscattering spectrometry, and ion transport modeling

NUCLEAR REACTIONS 20Ne(p, γ), E=1169 keV; 20Ne(α, α), E=2 MeV; measured reaction products, Eγ, Iγ; deduced resonance parameters, yields. The model FN tandem Van de Graaff accelerator at TUNL.

doi: 10.1016/j.nima.2023.168654
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2023CO09      Nucl.Instrum.Methods Phys.Res. A1056, 168648 (2023)

A.L.Cooper, S.Hunt, L.Downen, K.Setoodehnia, F.Portillo, C.Marshall, T.B.Clegg, A.E.Champagne, R.Longland

252Cf yield calibration method for nuclear material accountancy and safeguards practitioners

RADIOACTIVITY 252Cf(SF); measured decay products, En, In; deduced neutron yields using passive neutron correlation counting (PNCC). The neutron source used in this evaluation was previously certified by the National Institutes of Science and Technology (NIST), which provides a reference for the accuracy of the PNCC method.

doi: 10.1016/j.nima.2023.168648
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2023PO03      Phys.Rev. C 107, 035809 (2023)

F.Portillo, R.Longland, A.L.Cooper, S.Hunt, A.M.Laird, C.Marshall, K.Setoodehnia

Spin-parities of subthreshold resonances in the 18F(p, α)15O reaction

NUCLEAR REACTIONS 20Ne(3He, α)19Ne, E=21 MeV; measured reaction products, Eα, Iα, α(θ); deduced exclusive σ(θ) for excited states of 19Ne, resonances, resonance widths. 19Ne; deduced levels, J, π. 18F(p, α)15O, E<1900 keV; deduced astrophysical S factor using obtained information on 19Ne excited states corresponding to 18F+p resonances, reaction rates. R-matrix analysis. Comparison to other experimental data. Enge split-pole magnetic spectrograph at 10 MV FN Tandem Van de Graaff accelerator (TUNL).

doi: 10.1103/PhysRevC.107.035809
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Data from this article have been entered in the XUNDL database. For more information, click here.

2021MA61      Phys.Rev. C 104, L032801 (2021)

C.Marshall, K.Setoodehnia, F.Portillo, J.H.Kelley, R.Longland

New energy for the 133-keV resonance in the 23Na(p, γ)24Mg reaction and its impact on nucleosynthesis in globular clusters

NUCLEAR REACTIONS 23Na(3He, d)24Mg, E=21 MeV; measured E(d), I(d), σ(θ) using Enge split-pole spectrograph and a focal plane detector at the TUNL Tandem accelerator laboratory. 24Mg; deduced levels, resonances, excitation energy for a key proton resonance of 133-keV. 23Na(p, γ)24Mg, T9=0.01-0.5; deduced astrophysical reaction rates using the energy of the 133 keV resonance determined in the present work and the RatesMC Monte Carlo reaction rate code, median drop of 50% in the predicted 23Na abundance and corresponding increase by a factor of 2.5 in the 24Mg abundance using the present reaction rates, impact of 133-keV resonance on nucleosynthesis during hydrogen burning.

doi: 10.1103/PhysRevC.104.L032801
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2020HA09      Eur.Phys.J. A 56, 36 (2020)

C.B.Hamill, P.J.Woods, D.Kahl, R.Longland, J.P.Greene, C.Marshall, F.Portillo, K.Setoodehnia

Study of the 25Mg(d, p)26Mg reaction to constrain the 25Al(p, γ)26Si resonant reaction rates in nova burning conditions

doi: 10.1140/epja/s10050-020-00052-9
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2013PO08      Nucl.Instrum.Methods Phys.Res. B 305, 16 (2013)

F.E.Portillo, J.A.Liendo, A.C.Gonzalez, D.D.Caussyn, N.R.Fletcher, O.A.Momotyuk, B.T.Roeder, I.Wiedenhoever, K.W.Kemper, P.Barber, L.Sajo-Bohus

Light element quantification by lithium elastic scattering

NUCLEAR REACTIONS 1H(6Li, 6Li), 7Li(6Li, 6Li), 7Li(16O, 16O), 12C(6Li, 6Li), 19F(6Li, 6Li), E=13-20 MeV; measured products, Eπ, Iπ; deduced σ(θ). Data were imported from EXFOR entry C2037.

doi: 10.1016/j.nimb.2013.04.049
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2037.

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Note: The following list of authors and aliases matches the search parameter F.Portillo: , F.E.PORTILLO