{"title":"基于高斯-牛顿迭代法的等时回旋加速器精确上表面摆振算法","authors":"Tianjian Bian;Jinrong Lu;Fei Wang;Xinyu Chen;Jiansheng Xing;Pengfei Zhu;Jie Liu;Guang Yang;Yuanhao Liu;Cong Wu;Luyu Ji;Peng Huang;Sumin Wei;Shizhong An;Fengping Guan","doi":"10.1109/TNS.2025.3567768","DOIUrl":null,"url":null,"abstract":"Magnetic field shimming is crucial for achieving isochronous acceleration in a cyclotron. Matrix methods based on least square fitting are commonly used to calculate the cutting curve of a shimming bar. However, this matrix method becomes inapplicable when dealing with cases of nonlinear shimming effects. An algorithm based on the Gauss-Newton iteration method to address shimming problems with nonlinear effects has been proposed. Numerical and experimental results demonstrate the effectiveness and accuracy of this algorithm. It has been applied to a compact positron emission tomography (PET) cyclotron developed at China Institute of Atomic Energy (CIAE).","PeriodicalId":13406,"journal":{"name":"IEEE Transactions on Nuclear Science","volume":"72 6","pages":"1834-1842"},"PeriodicalIF":1.9000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Precise Upper Surface Shimming Algorithm for Isochronous Cyclotrons With the Gauss–Newton Iteration Method\",\"authors\":\"Tianjian Bian;Jinrong Lu;Fei Wang;Xinyu Chen;Jiansheng Xing;Pengfei Zhu;Jie Liu;Guang Yang;Yuanhao Liu;Cong Wu;Luyu Ji;Peng Huang;Sumin Wei;Shizhong An;Fengping Guan\",\"doi\":\"10.1109/TNS.2025.3567768\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Magnetic field shimming is crucial for achieving isochronous acceleration in a cyclotron. Matrix methods based on least square fitting are commonly used to calculate the cutting curve of a shimming bar. However, this matrix method becomes inapplicable when dealing with cases of nonlinear shimming effects. An algorithm based on the Gauss-Newton iteration method to address shimming problems with nonlinear effects has been proposed. Numerical and experimental results demonstrate the effectiveness and accuracy of this algorithm. It has been applied to a compact positron emission tomography (PET) cyclotron developed at China Institute of Atomic Energy (CIAE).\",\"PeriodicalId\":13406,\"journal\":{\"name\":\"IEEE Transactions on Nuclear Science\",\"volume\":\"72 6\",\"pages\":\"1834-1842\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-03-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Nuclear Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10992266/\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Nuclear Science","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10992266/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Precise Upper Surface Shimming Algorithm for Isochronous Cyclotrons With the Gauss–Newton Iteration Method
Magnetic field shimming is crucial for achieving isochronous acceleration in a cyclotron. Matrix methods based on least square fitting are commonly used to calculate the cutting curve of a shimming bar. However, this matrix method becomes inapplicable when dealing with cases of nonlinear shimming effects. An algorithm based on the Gauss-Newton iteration method to address shimming problems with nonlinear effects has been proposed. Numerical and experimental results demonstrate the effectiveness and accuracy of this algorithm. It has been applied to a compact positron emission tomography (PET) cyclotron developed at China Institute of Atomic Energy (CIAE).
期刊介绍:
The IEEE Transactions on Nuclear Science is a publication of the IEEE Nuclear and Plasma Sciences Society. It is viewed as the primary source of technical information in many of the areas it covers. As judged by JCR impact factor, TNS consistently ranks in the top five journals in the category of Nuclear Science & Technology. It has one of the higher immediacy indices, indicating that the information it publishes is viewed as timely, and has a relatively long citation half-life, indicating that the published information also is viewed as valuable for a number of years.
The IEEE Transactions on Nuclear Science is published bimonthly. Its scope includes all aspects of the theory and application of nuclear science and engineering. It focuses on instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.