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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >An improved Compton scattering method for determination of concentration of solutions
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An improved Compton scattering method for determination of concentration of solutions

机译：改进的康普顿散射法测定溶液浓度

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摘要

An improved Compton scattering method for determination of concentration of low-Z solutions is presented. The Monte Carlo (MC) numerical simulation of the scattering phenomena is done using the MCNP code. A unique non-linear extrapolation method is followed in correcting the scattered intensity for self-absorption and multiple scattering. The density ratios obtained using non linear extrapolated scattered intensity values are free from self-absorption and multiple scattering and agree well with the standard ones within experimental errors. The sensitivity study of transmission and scattering methods for determination of concentration of solutions having closer attenuation parameters at 661.6. keV is carried out to predict the range of effectiveness and suitability of these methods. The slopes (sensitivity/unit concentration) of the curves obtained from scattering method are higher by a factor of 1.26 compared to those of the transmission method in the measured range of concentrations.
机译：提出了一种改进的康普顿散射法，用于确定低Z溶液的浓度。使用MCNP代码完成了散射现象的蒙特卡洛（MC）数值模拟。遵循独特的非线性外推法来校正散射强度，以实现自吸收和多次散射。使用非线性外推散射强度值获得的密度比没有自吸收和多重散射，并且在实验误差范围内与标准值很好地吻合。透射和散射方法的敏感性研究，用于确定在661.6处具有更接近衰减参数的溶液的浓度。 keV用于预测这些方法的有效性和适用性范围。在浓度范围内，通过散射法测得的曲线的斜率（灵敏度/单位浓度）比透射法测得的斜率高1.26倍。

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