论文标题
测量塑料闪烁体中电离淬灭的测量
Measurement of ionization quenching in plastic scintillators
论文作者
论文摘要
塑料闪烁体广泛用于高能和医学物理学，通常用于测量电离辐射的能量。他们的主要缺点是他们对高电离辐射的非线性响应，称为电离淬火。必须在需要精确的能量测量的应用中对这种非线性进行建模和校正。我们提出了一种新的实验技术，可以颗粒测量淬灭对能量沉积密度的依赖性。基于这种方法，我们使用具有30 MeV至100 MeV的质子来确定两个常用的塑料闪烁体的四个常用淬火模型的参数；并使用贝叶斯方法比较模型。我们还报告了对电离淬灭对能量沉积密度的依赖性的第一个独立于模型的测量，从而提供了纯粹的经验观点。
Plastic scintillators are widely used in high-energy and medical physics, often for measuring the energy of ionizing radiation. Their main disadvantage is their non-linear response to highly ionizing radiation, called ionization quenching. This nonlinearity must be modeled and corrected for in applications where an accurate energy measurement is required. We present a new experimental technique to granularly measure the dependence of quenching on energy-deposition density. Based on this method, we determine the parameters for four commonly used quenching models for two commonly used plastic scintillators using protons with energies of 30 MeV to 100 MeV; and compare the models using a Bayesian approach. We also report the first model-independent measurement of the dependence of ionization quenching on energy-deposition density, providing a purely empirical view into quenching.
