Publicação
Experimental determination of the 23Na(p,p)23Na excitation function from 2.1 to 4.1 MeV
| Resumo: | Differential cross-section measurements for the elastic backscattering of protons from 23Na, for incident energies ranging from 2.1 to 4.1 MeV, were conducted using a 3 MV Tandem accelerator, with a beam directed onto a 35.7 μg/cm2 sodium fluoride film deposited on a thin self-supporting Ag substrate. Proton backscattering spectra were recorded using a PIPS detector placed at 157∘ relative to the beam direction. Cross-sections were determined by comparing proton yields from 23Na and Ag, the latter treated as Rutherford scatterer, with an overall average uncertainty estimated below 8%. A comparison with previously published data is presented and the effects of the overlapping 23Na(p,α1)20Ne, 19F(p,α3)16O and 19F(p,α4)16O reactions are discussed. A simplified R-matrix analysis was conducted to assess the consistency between the literature level scheme and the present dataset, demonstrating satisfactory agreement. Finally, to provide an additional test of the overall validity of the measured elastic cross-section and R-matrix results, two thick target benchmark experiments are presented. |
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| Autores principais: | Cruz, J. |
| Outros Autores: | Neves, D.; Skowronski, J.; Jesus, A. P. |
| Assunto: | Nuclear and High Energy Physics |
| Ano: | 2026 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| Resumo: | Differential cross-section measurements for the elastic backscattering of protons from 23Na, for incident energies ranging from 2.1 to 4.1 MeV, were conducted using a 3 MV Tandem accelerator, with a beam directed onto a 35.7 μg/cm2 sodium fluoride film deposited on a thin self-supporting Ag substrate. Proton backscattering spectra were recorded using a PIPS detector placed at 157∘ relative to the beam direction. Cross-sections were determined by comparing proton yields from 23Na and Ag, the latter treated as Rutherford scatterer, with an overall average uncertainty estimated below 8%. A comparison with previously published data is presented and the effects of the overlapping 23Na(p,α1)20Ne, 19F(p,α3)16O and 19F(p,α4)16O reactions are discussed. A simplified R-matrix analysis was conducted to assess the consistency between the literature level scheme and the present dataset, demonstrating satisfactory agreement. Finally, to provide an additional test of the overall validity of the measured elastic cross-section and R-matrix results, two thick target benchmark experiments are presented. |
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