Trinity Engineering Associates, Inc., 8832 FalmouthDr., Cincinnati, OH 45231, USA.
Health Phys. 2013 Aug;105(2 Suppl 2):S169-75. doi: 10.1097/HP.0b013e31828e1e10.
The latest version of the CAP88-PC computer model, Version 4, has many changes and improvements from previous versions. The most significant of these changes from a user perspective are the incorporation of age-dependent radionuclide dose and risk factors for ingestion and inhalation, the increase in the number of included radionuclides, and a change in the file management system used by the program. Other changes less visible to the user include new code architecture, incorporation of numerical solvers for the calculation of radioactive decay chains, including the ingrowth of decay products during air transport and ground surface deposition, enhanced error messages, updated on-line help, and a utility for migrating Version 3 datasets, wind files, and population files to Version 4. The modifications have produced a significant improvement in speed and stability for Version 4 relative to Version 3 and eliminated the solution approximations used in Version 3. The U.S. Environmental Protection Agency has implemented an extensive testing and documentation program for CAP88-PC Version 4 to address user concerns with past versions, resulting in enhanced documentation supporting compatibility with user software quality assurance programs.
CAP88-PC 计算机模型的最新版本，即第 4 版，与之前的版本相比有许多变化和改进。从用户的角度来看，这些变化中最重要的是纳入了与年龄相关的放射性核素剂量和摄入及吸入风险因素、增加了所包含的放射性核素数量以及改变了程序使用的文件管理系统。其他对用户不太可见的变化包括新的代码架构、纳入用于放射性衰变链计算的数值解算器，包括在空气传输和地面沉积过程中衰变产物的生长、增强的错误消息、更新的在线帮助以及用于将第 3 版数据集、风文件和人口文件迁移到第 4 版的实用程序。这些修改使得第 4 版相对于第 3 版在速度和稳定性方面有了显著提高，并消除了第 3 版中使用的解算近似值。美国环境保护署对 CAP88-PC 第 4 版实施了广泛的测试和文档编制计划，以解决用户对过去版本的担忧，从而增强了与用户软件质量保证程序兼容性的文档支持。
