Self-organized field-reversed configuration (FRC)-like formation was observed after the super-sonic/Alfvénic collisional merging of two FRCs in the FAT-CM device at Nihon University. In this experiment, two FRCs were generated initially in two separate field-reversed theta-pinch type formation regions. Those two formation regions are coaxially connected to opposite ends of a cylindrical confinement chamber. The formed FRCs are oppositely-translated and collide in the middle of the confinement chamber at super-sonic/Alfvénic velocity. During the collision, the merged plasmoid experiences destructive disturbance and loses its fast toroidal flow and characteristic FRC property of having a field-reversed magnetic configuration to become a magnetized plasma without ordered structure. After this dynamic collision, a magnetic configuration of FRC with fast toroidal rotation is self-organized within a few tens of microseconds. This observation indicates robustness of the extremely high-beta, simple magnetic configuration.
自己組織化的场反位形（FRC）类似结构在日本大学FAT-CM装置中，于两个FRC的超音速/阿尔芬速度对撞合并后被观测到。在本实验中，两个FRC最初在两个独立的场反θ箍缩形成区域中产生。这两个形成区域同轴连接于圆柱形约束室的两端。形成的FRC相向平移，并以超音速/阿尔芬速度在约束室中部发生碰撞。在碰撞过程中，合并的等离子体团经历破坏性扰动，失去其快速环向流动及场反磁位形的特征性FRC性质，转变为无有序结构的磁化等离子体。在此动态碰撞之后，具有快速环向旋转的场反磁位形在数十微秒内自发重建。这一观测结果表明，该极高β、简单磁位形具有鲁棒性。