Refueling of field-reversed configuration core via axial plasmoids injection

Refueling of field-reversed configuration core via axial plasmoids injection

Blog Article

This study successfully developed a refueling technique for a field-reversed configuration (FRC) via axial plasmoid injection and demonstrated it on the FAT-CM Waffle Makers device at Nihon University.The target FRC is generated using the collisional-merging formation technique combined with conical theta-pinch formation.Plasmoids with an FRC-like configuration are coaxially injected from both ends of the FAT-CM device toward the preexisting target FRC.Postinjection, the system achieves equilibrium, resulting in increases by factors of 1.8 and 2.

4 in the total inventory and plasma energy, respectively, compared to cases without injection.This method effectively accomplishes FRC refueling while preserving the intrinsic characteristics of a simply connected, axisymmetric configuration and a Sink Strainer high beta value approaching unity.Therefore, this approach offers potential for repetitive refueling in the reactor stage having a FRC plasma core.Experimental outcomes are compared with magnetohydrodynamic simulation results.In the collisional merging process, the characteristics of the pre-collision plasmoids, such as the strong toroidal rotation and coherent FRC-like magnetic field structures of the FRC, are not preserved.

Experimental environments have been constructed to investigate such unique properties of the resulting FRCs.