典型文献
Wide-range characteristics of beam perveance and saddle point potential of LIPS-200 ion thruster
文献摘要：
Both the long-life and multi-mode versions of LIPS-200 ion thruster are under investigation in LIP(Lanzhou Institute of Physics).To confirm the feasible ranges of the beam current and accel(abbreviation for accelaration)grid potential to apply to the thruster,the wide-range beam perveance(the state of beam focus)and saddle point potential(the lowest potential along beamlet centerline)characteristics of LIPS-200 are studied with a test-verified PIC-MCC(Particle in Cell-Monte Carlo Collisions)model.These characteristics are investigated with both the initial and the eroded states of the accel grid aperture diameter.The results show that the feasible ranges of these parameters with respect to perveance/crossover(overfocused)limit extend as the operating time accumulates,while the feasible range of accel grid potential narrows due to a reduced EBSF(electron backstreaming failure)margin.The feasible ranges determined by the initial condition are:(ⅰ)the beam current up to 0.981 A,and(ⅱ)the accel grid potential up to-85 V.A 23％enlargement of the aperture diameter would bring up to 48 V of EBSF margin loss.
文献关键词：
中图分类号：
作者姓名：
Xueer ZHANG;Tianping ZHANG;Detian LI;Juanjuan CHEN;Yanhui JIA
作者机构：
Science and Technology on Vacuum Technology and Physics Laboratory,Key Laboratory of Space Electric Propulsion Technology of Gansu Province,Lanzhou Institute of Physics,Lanzhou 730000,People's Republic of China
文献出处：
引用格式：
[1]Xueer ZHANG;Tianping ZHANG;Detian LI;Juanjuan CHEN;Yanhui JIA-.Wide-range characteristics of beam perveance and saddle point potential of LIPS-200 ion thruster)[J].等离子体科学和技术（英文版）,2022(11):85-92
A类：
perveance,thruster,accelaration,beamlet,Collisions,overfocused,EBSF,backstreaming
B类：
Wide,characteristics,saddle,point,potential,LIPS,Both,life,multi,versions,are,under,investigation,Lanzhou,Institute,Physics,To,confirm,feasible,ranges,current,abbreviation,grid,apply,wide,lowest,along,centerline,studied,test,verified,PIC,MCC,Particle,Cell,Monte,Carlo,model,These,investigated,both,initial,eroded,states,aperture,diameter,results,show,that,these,parameters,respect,crossover,limit,extend,operating,accumulates,while,narrows,due,reduced,electron,failure,margin,determined,by,condition,up,enlargement,would,bring,loss
AB值：
0.423931
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