This study aimed to simulate the X-ray Irradiator narrow-spectrum series and compare the results with experimental and recommended values in ISO standards. X-Ray beam qualities of N-40 to N-300 were established experimentally at the national Secondary Standard Dosimetry Laboratory (SSDL) of Morocco in purpose of calibrating radiation protection- level. The variations between the first half-value layer (1^st HVL) and the second (2^nd HVL) for experimental were within 5%. Also, homogeneity coefficients h were mostly between 0.75 and 1 according to ISO. GAMOS Monte Carlo code was used to simulate the radiation quality of narrow-spectrum series between N-40 to N-150. All 1^st HVL, 2^nd HVL, and h simulation values were compare with experimental and ISO values. In MC codes and GAMOS, there is no direct way to generate the X-ray spectrum if we do not have details of the X-ray tube geometry, dimensions and materials. Therefore, Institute of Physics and Engineering in Medicine report number 78 was used to generate the X-ray spectrums in purpose to test this method accuracy. The simulation results for the 1^st HVL and 2^nd HVL showed a good agreement with experimental data and with ISO 4037–1:1996 given values. Also, the comparison results showed that most of the homogeneity coefficients are within the ISO standard range.

本研究旨在模拟 X 射线辐照器窄谱系列，并将结果与​​ ISO 标准中的实验值和推荐值进行比较。N-40 到 N-300 的 X 射线束质量是在摩洛哥国家二级标准剂量学实验室（SSDL）通过实验建立的，目的是校准辐射防护水平。用于实验的第一个半值层 (1 ^st HVL) 和第二个 (2 ^nd HVL) 之间的差异在 5% 以内。此外，根据 ISO ，均匀性系数h大多在 0.75 和 1 之间。GAMOS Monte Carlo代码用于模拟N-40到N-150之间窄谱系列的辐射质量。所有 1 ^st HVL、2 ^nd HVL 和h模拟值与实验值和 ISO 值进行了比较。在 MC 代码和 GAMOS 中，如果我们没有 X 射线管几何形状、尺寸和材料的详细信息，就没有直接的方法来生成 X 射线光谱。因此，医学物理与工程研究所报告编号 78 用于生成 X 射线光谱，目的是测试该方法的准确性。仿真结果为1^日HVL和2^次HVL表明与实验数据，并与ISO 4037-1约定好：1996年给定的值。此外，比较结果表明，大多数均匀系数都在 ISO 标准范围内。