CAJ | 학술논문

提出了一种向内发射磁绝缘振荡器,并给出了微波轴向提取的方法.这种新型结构通过外置阴极、内置阳极,使参与束波作用的轮辐电流通过阳极回流提供了自磁绝缘的角向磁场,有提高器件效率的可能.而外置阴极使阴极的发射面积增大,发射电流密度减小,有利于延长阴极寿命.通过粒子模拟,得到了几何参数与磁绝缘线振荡器输出功率的关系.在电压890 kV,电流56.1 kA下,输出功率为3.6 GW,频率为8.2 GHz.
제출료일충향내발사자절연진탕기,병급출료미파축향제취적방법.저충신형결구통과외치음겁、내치양겁,사삼여속파작용적륜복전류통과양겁회류제공료자자절연적각향자장,유제고기건효솔적가능.이외치음겁사음겁적발사면적증대,발사전류밀도감소,유리우연장음겁수명.통과입자모의,득도료궤하삼수여자절연선진탕기수출공솔적관계.재전압890 kV,전류56.1 kA하,수출공솔위3.6 GW,빈솔위8.2 GHz.
An inward emitting magnetically insulated transmission line oscillator(MILO) is presented and a method to axially extract microwave is assumed. The inward-emitting MILO has an novel design of structure with outer cathode and inner anode, which can recycle spoke current to provide self-insulating angular magnetic field, thus to improve the tube's efficiency. The outer cathode has expanded emitting area, and the current density can be reduced correspondingly for a long cathode life. PIC simulation reveals the relationship between the MILO's structure parameters and its output power. When the electron beam voltage is 890 kV and beam current is about 56.1 kA, microwave output of 3.6 GW is obtained with frequency of 8.2 GHz.