摘要
目的在动物肿瘤磁感应热疗线圈式磁场发生装置的设计中,对传统螺线管线圈进行优化设计,提高治疗磁感应强度及均匀度。方法采用螺线管线圈两端加补偿线圈的方式,通过COMSOL5.1有限元软件仿真,构建多匝线圈及补偿线圈模型,研究补偿线圈离端口的距离、电流以及匝数对磁感应强度的影响,确定了补偿线圈的最佳位置、通入补偿线圈的电流以及匝数。结果采用补偿线圈的设计方案与不采用补偿线圈方案相比,在最佳位置处,相同条件下,其中心磁感应强度提高了约4.2%,磁场的均匀性提高了约66.7%。结论与原设计相比,优化设计的磁感应强度与磁场的均匀性达到了较理想状态。
Objective To improve the magnetic intensity and magnetic field uniformity,the design of the traditional solenoid coil in magnetic field generating device for animal tumor magnetic induction hyperthermia was optimized. Methods Compensating coils were added on both ends of the original solenoid coil,the influences of the distance,the current and the number of turns on the magnetic induction were studied. The optimum position,the current and the number of turns of the compensating coil were determined by COMSOL5. 1 finite element software simulation. Results The results showed that the coil of the compensating coil magnetic field intensity increased about 4. 2% than the non-compensating coil,and the effective treatment space increased about 66. 7% at the optimum position. Conclusion Compared to the original coil,the optimized coil could better optimize the magnetic induction intensity and magnetic field uniformity.
作者
王军
逯迈
刘曦
Wang Jun;Lu Mai;Liu Xi.(Key Lab of Optoelectronic Technology and Intel- ligent Control , Ministry of Education, Lanzhou Jiaotong University, Lanzhou Gansu 730070, Chin)
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2018年第3期380-387,共8页
Space Medicine & Medical Engineering
基金
国家自然科学基金(11564024
51567015)
关键词
肿瘤
磁感应热疗
线圈
有限元
磁场
tumor
magnetic induction hyperthermia
coil
finite element method
magnetic field
