标题： 腔体设计与辐射输运代码的集成仿真（ACE3P + Geant4） 显示英文标题

标题： Integrated simulation of cavity design and radiation transport codes (ACE3P + Geant4)

摘要： 已开发出一种仿真工作流，用于使用 ACE3P 和 Geant4 研究暗电流 (DC) 辐射效应。该集成工作流在电磁 (EM) 腔体仿真代码 ACE3P 和辐射代码 Geant4 之间接口粒子数据传输和几何结构，旨在通过高性能计算解决大规模问题。该过程首先计算加速器结构真空区域中的运行模式，并跟踪受 ACE3P 计算的模式电磁场影响的场发射电子。然后通过 Geant4 计算将粒子数据传输到真空壁界面，以进行后续的壁封装材料内的辐射计算。整个集成仿真工作流将通过 KEK 56 细胞行波结构的暗电流辐射计算进行演示，并展示在 NERSC 超级计算机 Perlmutter 上执行这些仿真操作的效率。 显示英文摘要

摘要： A simulation workflow has been developed to study dark current (DC) radiation effects using ACE3P and Geant4. The integrated workflow interfaces particle data transfer and geometry between the electromagnetic (EM) cavity simulation code ACE3P and the radiation code Geant4, targeting large-scale problems using high-performance computing. The process begins by calculating the operating mode in the vacuum region of an accelerator structure and tracking field-emitted electrons influenced by the EM fields of the mode calculated by ACE3P. It then transfers particle data at the vacuum-wall interface for subsequent radiation calculations within the wall enclosure materials through Geant4 calculation. The whole integrated simulation workflow will be demonstrated through large-scale dark current radiation calculations for the KEK 56-cell traveling-wave structure, and the efficiency of performing these simulations on the NERSC supercomputer Perlmutter will be presented.