The stopping power of targets against incident charged particles and their range through matter are commonly considered as two important parameters in radiation and health physics studies. The exact calculation of these parameters is very crucial in many applications of radiation. The main objective of this study is the development of a new code for stopping power and range calculation of incident electron and positron projectiles. In this case, the interactions with matter are mainly due to the collision process and the Bremsstrahlung radiation emission. For collision stopping power, the Moller and Bhabha relations were considered for electron and positron, respectively. Some sophisticated correlations based on the Fano model have been selected for density correction term. For the radiative stopping power, a multifunction analytical model was developed based on an extensive literature review. All the equations were consolidated and programmed via the development of a new computational code using the C# programming language. Some simple and compound generic materials were considered for the verification process. Graphite, Silicon and Copper were selected as simple materials; whilst compound materials include air, water and the A-150- Tissue-Equivalent Plastic (A150TEP). The results of the stopping power and the range of incident particles were compared with well-known ICRU reports as well as Monte Carlo simulation. The results are consistent and in agreement with reference data. The maximum relative error of the collision stopping power was about 5% in comparison with ICRU reports for both electron and positron. However, for the positron projectile at low energies, some minor discrepancies were observed between the calculated collision stopping power and the MCNPX data. For the radiative stopping power, some deviations were observed in the low energy region and the model borders. The maximum relative error in the total stopping power was about 5–6% in comparison with ICRU reports and 15–20% in comparison with the MCNPX.

目标对入射带电粒子的阻止能力及其在物质中的射程通常被认为是辐射和健康物理学研究中的两个重要参数。这些参数的精确计算在辐射的许多应用中至关重要。这项研究的主要目的是开发一种用于停止入射电子和正电子弹丸的功率和射程计算的新代码。在这种情况下，与物质的相互作用主要归因于碰撞过程和Bre致辐射辐射。对于碰撞停止能力，分别考虑了电子和正电子的Moller和Bhabha关系。选择了一些基于Fano模型的复杂相关性作为密度校正项。对于辐射制动力，基于广泛的文献综述，开发了多功能分析模型。通过使用C＃编程语言开发新的计算代码，可以对所有方程进行合并和编程。在验证过程中考虑了一些简单且复合的通用材料。选择石墨，硅和铜作为简单材料。复合材料包括空气，水和A-150组织等效塑料（A150TEP）。将制动力和入射粒子范围的结果与著名的ICRU报告以及蒙特卡洛模拟进行了比较。结果是一致的并且与参考数据一致。与ICRU报告的电子和正电子相比，碰撞停止功率的最大相对误差约为5％。然而，对于低能量的正电子弹，在计算出的碰撞停止功率和MCNPX数据之间观察到一些细微的差异。对于辐射停止功率，在低能区域和模型边界处观察到一些偏差。与ICRU报告相比，总制动力的最大相对误差约为5–6％，与MCNPX相比约为15–20％。