Resonance strengths in the 17,18O(p, a)14,15N reactions and background suppression underground Commissioning of a new setup for charged-particle detection at LUNA
Resonance strengths in the 17,18O(p, a)14,15N reactions and background suppression underground Commissioning of a new setup for charged-particle detection at LUNA
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17,18O(p, a)14,15N 反应中的共振强度和地下背景抑制 在 LUNA 上调试新的带电粒子检测装置
DOI：
10.1140/epja/i2015-15094-y
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Bruno C
中科院分区：
文献类型：
--
作者：
Bruno C
我们报告了18o (p,)15N和17o (p,)14N反应的共振强度和193kev共振能量的测量，分别是在月球月球地下实验室的α粒子探测研究的新装置调试期间获得的。我们的值，meV和meV，与文献中报道的非常一致。共振能量的新值分别为kev和kev，后者具有迄今为止最高的精度。在地面和地下的硅探测器上也进行了比较背景测量，在能量约200keV的月球上产生了高达15倍的背景抑制。这清楚地证明了地下测量在带电粒子实验中的有用性，特别是在低探测能量下。
We report on measurements of resonance strengths and energies for theand 193 keV resonances in the18O(p,)15N and17O(p,)14N reactions, respectively, obtained during commissioning of a new setup for alpha-particle detection studies at the LUNA underground laboratory. Our values,meV andmeV, are in excellent agreement with those reported in the literature. New values of resonance energies arekeV andkeV, 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.