Advanced Virtual Accelerator Software: A linear accelerator simulation code
The Advanced Virtual Accelerator Software (avas) has been developed to simulate beam transport processes in high-intensity linear accelerators and has been used in the China Initiative Accelerator Driven System (CiADS) project. In the study of beam dynamics for high-intensity linear accelerators, 3D...
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-04-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.28.044602 |
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| author | Chao Jin Zhijun Wang Xin Qi Yuan He Zhongyi Li Kunxiang Sun Xiaolong Chen Chi Feng Xiaoying Zhao Yaxin Hu Yuan Tian Kai Li |
| author_facet | Chao Jin Zhijun Wang Xin Qi Yuan He Zhongyi Li Kunxiang Sun Xiaolong Chen Chi Feng Xiaoying Zhao Yaxin Hu Yuan Tian Kai Li |
| author_sort | Chao Jin |
| collection | DOAJ |
| description | The Advanced Virtual Accelerator Software (avas) has been developed to simulate beam transport processes in high-intensity linear accelerators and has been used in the China Initiative Accelerator Driven System (CiADS) project. In the study of beam dynamics for high-intensity linear accelerators, 3D multiparticle simulations are required due to numerous nonlinear effects caused by strong space charge effects. However, the use of multiparticle simulation is often limited by the computational speed of the particle-in-cell (PIC) algorithm. To achieve fast large-scale multiparticle simulation, avas uses a parallel framework implemented in c++ and improves related algorithms. Specifically, the PIC algorithm has been modified based on symmetry, resulting in the S-PICNIC algorithm. Under the test conditions described in this paper, compared to the standard algorithm, the S-PICNIC algorithm can accelerate the process of solving the space charge field by 4 times while maintaining the simulation accuracy. In addition, avas uses a combined particle motion mode that switches between two modes (using either time or position as the independent variable) based on the element type. This adaptive switching effectively balances the accuracy and speed of numerical simulation. This method has enabled the fast simulation of over 100 million macroparticles. Furthermore, avas uses object-oriented programming methods, where objects are designed based on real physical objects. This design allows avas to preset operating parameters through numerical simulation. In the test, avas successfully preset the operating parameters of the superconducting section of the Chinese ADS front-end demonstration linear Accelerator, resulting in a negligible beam loss and a deviation between the energy set value and the actual measured value of about 0.5%. This paper introduces the structure of the program and related physical models. Benchmark results are also discussed to verify the reliability of the code. |
| format | Article |
| id | doaj-art-87652df208564fc9be61025a50db4e72 |
| institution | OA Journals |
| issn | 2469-9888 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj-art-87652df208564fc9be61025a50db4e722025-08-20T02:18:25ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882025-04-0128404460210.1103/PhysRevAccelBeams.28.044602Advanced Virtual Accelerator Software: A linear accelerator simulation codeChao JinZhijun WangXin QiYuan HeZhongyi LiKunxiang SunXiaolong ChenChi FengXiaoying ZhaoYaxin HuYuan TianKai LiThe Advanced Virtual Accelerator Software (avas) has been developed to simulate beam transport processes in high-intensity linear accelerators and has been used in the China Initiative Accelerator Driven System (CiADS) project. In the study of beam dynamics for high-intensity linear accelerators, 3D multiparticle simulations are required due to numerous nonlinear effects caused by strong space charge effects. However, the use of multiparticle simulation is often limited by the computational speed of the particle-in-cell (PIC) algorithm. To achieve fast large-scale multiparticle simulation, avas uses a parallel framework implemented in c++ and improves related algorithms. Specifically, the PIC algorithm has been modified based on symmetry, resulting in the S-PICNIC algorithm. Under the test conditions described in this paper, compared to the standard algorithm, the S-PICNIC algorithm can accelerate the process of solving the space charge field by 4 times while maintaining the simulation accuracy. In addition, avas uses a combined particle motion mode that switches between two modes (using either time or position as the independent variable) based on the element type. This adaptive switching effectively balances the accuracy and speed of numerical simulation. This method has enabled the fast simulation of over 100 million macroparticles. Furthermore, avas uses object-oriented programming methods, where objects are designed based on real physical objects. This design allows avas to preset operating parameters through numerical simulation. In the test, avas successfully preset the operating parameters of the superconducting section of the Chinese ADS front-end demonstration linear Accelerator, resulting in a negligible beam loss and a deviation between the energy set value and the actual measured value of about 0.5%. This paper introduces the structure of the program and related physical models. Benchmark results are also discussed to verify the reliability of the code.http://doi.org/10.1103/PhysRevAccelBeams.28.044602 |
| spellingShingle | Chao Jin Zhijun Wang Xin Qi Yuan He Zhongyi Li Kunxiang Sun Xiaolong Chen Chi Feng Xiaoying Zhao Yaxin Hu Yuan Tian Kai Li Advanced Virtual Accelerator Software: A linear accelerator simulation code Physical Review Accelerators and Beams |
| title | Advanced Virtual Accelerator Software: A linear accelerator simulation code |
| title_full | Advanced Virtual Accelerator Software: A linear accelerator simulation code |
| title_fullStr | Advanced Virtual Accelerator Software: A linear accelerator simulation code |
| title_full_unstemmed | Advanced Virtual Accelerator Software: A linear accelerator simulation code |
| title_short | Advanced Virtual Accelerator Software: A linear accelerator simulation code |
| title_sort | advanced virtual accelerator software a linear accelerator simulation code |
| url | http://doi.org/10.1103/PhysRevAccelBeams.28.044602 |
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