一种测量锗酸铋闪烁体中氧反冲能量猝灭因子的方法
A method to measure the quenching factor for recoil energy of oxygen in bismuth germanium oxide scintillators
AI总结:
针对暗物质和中微子核散射等稀有事件探测需求,本文分析中子与BGO晶体中氧的弹性散射事件,并利用单能中子源测量氧反冲能量猝灭因子随反冲能量的变化。
摘要:
锗酸铋(Bi₄Ge₃O₁₂,BGO)闪烁晶体因其高密度以及由此带来的更高γ射线探测效率,被广泛用作粒子物理和天体物理领域的探测器。由于其良好的化学稳定性,它们可用于任何环境。对于暗物质和相干弹性中微子-核散射等稀有事件搜寻而言,BGO晶体对于理解核反冲响应至关重要。在本研究中,我们分析了中子与BGO晶体中氧发生弹性散射的事件。随后,我们利用单能中子源,测量了BGO晶体中氧反冲能量的猝灭因子随反冲能量变化的函数关系。
英文摘要:
Bismuth germanium oxide ($\rm Bi_{4} Ge_{3} O_{12}$, BGO) scintillation crystals are widely used as detectors in the fields of particle physics and astrophysics due to their high density, and thus higher efficiency for gamma-ray detection. Owing to their good chemical stability, they can be used in any environment. For rare-event searches, such as dark matter and coherent elastic neutrino-nucleus scattering, BGO crystals are essential to comprehend the response of nuclear recoil. In this study, we have analyzed the events of neutron elastic scattering with oxygen in BGO crystals. Then, we have measured the quenching factor for oxygen recoil energy in the BGO crystal as a function of recoil energy by using a monoenergetic neutron source.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。