摘要
为了提高探测器场笼内部电场均匀性,采用Comsol仿真数值模拟软件对探测器场笼内部电场进行模拟,分析了不同条件下对场笼内部电场的影响。结果表明:1)改变探测器场笼外边界条件可使探测器场笼内的电场大范围接近设定的目标值200 V/cm,提高场笼内部电场均匀性;2)改变金属电极环的宽度、厚度、中心距可增强对探测器外场的屏蔽效果,使探测器场笼内的电场值为设定的目标值200 V/cm,提高探测器场笼内部电场均匀性,并且减小中心距、增大金属电极环厚、增大金属电极环宽对探测器场笼内部电场的改善效果依次减小;3)增加等势环可改变因电极形状的突变而引起的相邻金属电极电场线发散,也可以提高探测器场笼内部电场的均匀性。通过模拟计算场笼电场分布,评估各个参数对场笼电场的影响程度,总结各参数选取的原则,为不同实验中探测器场笼的设计提供优化指导。
In order to improve the homogeneity of electric field inside the detector cage,the Comsol simulation numerical simulation software is used to simulate the electric field inside the detector cage,and the influence of different conditions on the electric field inside the cage is analyzed.The results show that:1)Changing the outer boundary condition of the detector field cage can make the electric field in the detector field cage close to the set target value of 200 V/cm in a wide range and improve the electric field uniformity in the field cage.2)Changing the width,thickness and center distance of the metal electrode ring can enhance the shielding effect on the outer field of the detector,make the electric field value in the detector field cage 200 V/cm,improve the uniformity of the electric field inside the detector field cage,and reduce the improvement effect on the electric field inside the detector field cage in turn by reducing the center distance,increasing the thickness of the metal electrode ring and increasing the width of the metal electrode ring.3)Increasing the equipotential ring can change the divergence of electric field lines of adjacent metal electrodes caused by sudden change of electrode shape,and can also improve the uniformity of electric field inside the detector cage.This paper evaluates the influence of each parameter on the field cage field by simulating and calculating the field cage field distribution,summarizes the principles of selecting each parameter,and provides optimization guidance for the design of detector field cage in different experiments.
作者
李文博
张俊伟
米振远
时永兴
张利平
I Wenbo;ZHANG Junwei;MI Zhenyuan;SHI Yongxing;ZHANG Liping(School of Energy and Power Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045,China)
出处
《能源研究与管理》
2023年第1期177-183,共7页
Energy Research and Management
关键词
场笼
金属电极环
中心距
等势环
field cage
metal electrode ring
center distance
equipotential ring
