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arXiv 2204.09124physics.ins-det
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基于GEANT4的μ子散射层析成像中μ子能量分类的偏转角研究

Investigation of deflection angle for muon energy classification in muon scattering tomography via GEANT4 simulations

Ahmet Ilker Topuz, Madis Kiisk, Andrea Giammanco, Mart Magi

摘要:

在μ子散射层析成像中,根据散射角来区分所研究的材料,该散射角主要取决于在给定能量值下介质的原子序数、密度和厚度。不同初始能量下的散射角也提供了将入射μ子分类为多个能量组的机会。在这项研究中,通过采用GEANT4代码,我们表明,偏转角指数衰减作为能量的函数,和当前配置的数值是低于检测器的精度,除了初始能量箱由于低Z,低密度,和低厚度的当前塑料反射器。这意味着需要额外的组件,挑起μ子散射。因此,我们在顶部和底部引入不锈钢表面,以放大偏转角并降低不确定性,从而提高探测器性能。

英文摘要:

In muon scattering tomography, the investigated materials are discriminated according to the scattering angle that mainly depends on the atomic number, the density, and the thickness of the medium at a given energy value. The scattering angles at different initial energies also provide the opportunity to classify the incoming muons into a number of energy groups. In this study, by employing the GEANT4 code, we show that the deflection angle exponentially decays as a function of energy, and the numerical values for the current configuration are below the detector accuracy except the initial energy bins owing to the low-Z, low density, and low thickness of the current plastic scintillators. This implies the necessity of additional components that provoke the muon scattering. Therefore, we introduce stainless steel surfaces into the top and bottom sections in order to amplify the deflection angle as well as to reduce the uncertainty, thereby improving the detector performance.

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。

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