The mass attenuation coefficients (μ_m) of polyethylene glycol (PEG) of different molecular weights (1000–200,000) were measured using single-beam photon transmission. The X-ray fluorescent (XRF) photons from Zinc (Zn), Zirconium (Zr), Molybdenum (Mo), Silver (Ag) and Cadmium (Cd) targets were used to determine the attenuation of gamma radiation of energy range between 8.67 and 23.19 keV in PEG samples. The results were compared to theoretical values using XCOM and Monte Carlo simulation using Geant4 toolkit which was developed to validate the experiment at those certain energies. The mass attenuation coefficients were then used to compute the effective atomic numbers, electron density and half value layers for the studied samples. The outcomes showed good agreement between experimental and simulated results with those calculated theoretically by XCOM within 5% deviation. The PEG 1000 sample showed slightly higher μ_m value compared with the other samples. The dependence of the photon energy and PEG composition on the values of μ_m and HVL were investigated and discussed. In addition, the values of Z_eff and N_eff for all PEG samples behaved similarly in the given photon energy range, and they decreased as the photon energy increased.

质量衰减系数（_μm) 使用单光束光子传输测量不同分子量 (1000–200,000) 的聚乙二醇 (PEG)。来自锌 (Zn)、锆 (Zr)、钼 (Mo)、银 (Ag) 和镉 (Cd) 靶材的 X 射线荧光 (XRF) 光子用于确定能量范围在 8.67 和PEG 样品中为 23.19 keV。将结果与使用 XCOM 的理论值和使用 Geant4 工具包的蒙特卡洛模拟进行比较，该工具包旨在验证那些特定能量下的实验。然后使用质量衰减系数来计算所研究样品的有效原子序数、电子密度和半值层。结果表明，实验结果和模拟结果与 XCOM 理论计算的结果吻合良好，偏差在 5% 以内。_m值与其他样品的比较。研究和讨论了光子能量和PEG组成对_μm和HVL值的依赖性。此外，所有 PEG 样品的 Z _eff和 N _eff值在给定的光子能量范围内表现相似，并且随着光子能量的增加而减小。