The GUPIX package for processing particle-induced X-ray emission (PIXE) spectra has been updated and expanded, with emphasis on the 1–15 keV X-ray energy range accessed by silicon drift detectors. Several portions of the GUPIX database are modified or extended. The existing mass attenuation coefficient (MAC) dataset is now partnered with an alternative MAC dataset which improves PIXE’s accuracy in analysis of light elements. Different approaches to characterizing a PIXE system are compared, with optimization of accuracy the objective. The suite of small supporting codes has been expanded and housed in a new format designed for ease of use. Detector description now includes both polymer and silicon nitride windows, each supported by grid structures. Two means of detecting and correcting for small departures from channel versus energy linearity are presented. An existing Monte Carlo code for prediction of detector intrinsic efficiency is updated and an improved interface is provided.

用于处理粒子感应X射线光谱（PIXE）的GUPIX软件包已经更新和扩展，重点是硅漂移检测器可以访问的1-15 keV X射线能量范围。GUPIX数据库的几个部分被修改或扩展。现在，现有的质量衰减系数（MAC）数据集与替代的MAC数据集配合使用，从而提高了PIXE在分析轻元素方面的准确性。比较了表征PIXE系统的不同方法，并以优化精度为目标。小型支持代码套件已进行了扩展，并以易于使用的新格式容纳。现在，探测器的描述包括聚合物和氮化硅窗口，每个窗口都由网格结构支撑。提出了两种检测和校正与信道线性关系与能量线性关系小的偏差的方法。更新了用于预测检测器固有效率的现有蒙特卡洛代码，并提供了改进的接口。