Resonance strengths in the 17,18O(p, α)14,15N reactions and background suppression underground
Resonance strengths in the 17,18O(p, α)14,15N reactions and background suppression underground
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17,18O(p, α)14,15N 反应的共振强度和地下背景抑制
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Luna Collaboration
中科院分区：
文献类型：
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作者：
C. Bruno;D. Scott;A. Formicola;M. Aliotta;T. Davinson;M. Anders;A. Best;D. Bemmerer;C. Broggini;A. Caciolli;F. Cavanna;P. Corvisiero;R. Depalo;A. Di Leva;Z. Elekes;Z. Fülöp;G. Gervino;C. Griffin;A. Guglielmetti;C. Gustavino;G. Gyürky;G. Imbriani;M. Junker;R. Menegazzo;E. Napolitani;P. Prati;E. Somorjai;O. Straniero;F. Strieder;T. Szücs;D. Trezzi;Luna Collaboration
Abstract.We report on measurements of resonance strengths and energies for the $ E_{p} = 151$ and 193 keV resonances in the 18O(p,$alpha$)15N and 17O(p,$alpha$)14N reactions, respectively, obtained during commissioning of a new setup for alpha-particle detection studies at the LUNA underground laboratory. Our values, $omegagamma (151)=164.2pm 0.9_{stat} {}^{+12.1}_{-11.7} {}_{syst}$ meV and $omegagamma (193)=1.68pm 0.03_{stat} pm 0.12_{syst}$ meV, are in excellent agreement with those reported in the literature. New values of resonance energies are $ E_{p}=151.2 pm 0.3$ keV and $ E_{p}=194.8 pm 0.3$ keV, respectively, this latter with the highest precision to date. Comparative background measurements in silicon detectors overground and underground were also carried out, yielding up to a factor of 15 in background suppression at LUNA at energies around 200keV. This clearly demonstrates the usefulness of underground measurements in charged-particles experiments, especially at low detection energies.
Abstract.We report on measurements of resonance strengths and energies for the $ E_{p} = 151$ and 193 keV resonances in the 18O(p,$alpha$)15N and 17O(p,$alpha$)14N reactions, respectively, obtained during commissioning of a new setup for alpha-particle detection studies at the LUNA underground laboratory. Our values, $omegagamma (151)=164.2pm 0.9_{stat} {}^{+12.1}_{-11.7} {}_{syst}$ meV and $omegagamma (193)=1.68pm 0.03_{stat} pm 0.12_{syst}$ meV, are in excellent agreement with those reported in the literature. New values of resonance energies are $ E_{p}=151.2 pm 0.3$ keV and $ E_{p}=194.8 pm 0.3$ keV, respectively, this latter with the highest precision to date. Comparative background measurements in silicon detectors overground and underground were also carried out, yielding up to a factor of 15 in background suppression at LUNA at energies around 200keV. This clearly demonstrates the usefulness of underground measurements in charged-particles experiments, especially at low detection energies.
与爆炸性氢燃烧相关的 O 17 (p, γ) F 18 反应的地下研究
影响因子：
3.1
作者：
A. Di Leva;D. A. Scott;A. Caciolli;A. Formicola;F. Strieder;M. Aliotta;M. Anders;D. Bemmerer;C. Broggini;P. Corvisiero;Z. Elekes;Zs. Fülöp;G. Gervino;A. Guglielmetti;C. Gustavino;Gy. Gyürky;G. Imbriani;J. José;M. Junker;M. Laubenstein
通讯作者：
M. Laubenstein