Mass attenuation coefficients ([Formula: see text]) for some nonlinear optical materials such as potassium dihydrogen phosphate, ammonium dihydrogen phosphate, zinc tris-thiourea sulphate, and zinc thiourea chloride were measured using a [Formula: see text] NaI(Tl) scintillation detector at gamma energies of 122 keV, 356 keV, 511 keV, 662 keV, 840 keV, 1170 keV, 1270 keV, and 1330 keV. In addition, GEANT4 simulations were carried out to mimic the experiment at these energies. As a result, good agreement between the experimental and GEANT4 results was observed. The measured [Formula: see text] values were used to compute effective atomic numbers ([Formula: see text]) for the selected materials. It was found that the [Formula: see text] values were in the range typical for dosimetric materials.

中文翻译：

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某些NLO材料的伽马射线衰减特性：在剂量学中的潜在用途。

使用NaI（Tl）测量了某些非线性光学材料（例如磷酸二氢钾，磷酸二氢铵，三硫脲硫酸锌和氯化硫脲锌）的质量衰减系数（公式）。 γ能量为122 keV，356 keV，511 keV，662 keV，840 keV，1170 keV，1270 keV和1330 keV的闪烁探测器。此外，还进行了GEANT4模拟以模拟在这些能量下的实验。结果，观察到实验结果与GEANT4结果之间的良好一致性。测量的[公式：参见文本]值用于计算所选材料的有效原子序数（[公式：参见文本]）。发现[公式：参见文本]值在剂量学材料的典型范围内。