Formation of Field-reversed-Configuration Plasma with Punctuated-betatron-orbit Electrons

Welch, D. R. ; Cohen, S. A. ; Genoni, T. C. ; Glasser, A. H.

Princeton University. Plasma Physics Laboratory.

关键词: Magnetic Fields;    Energy Spectra;    70 Plasma Physics And Fusion Technology;    Plasma Pressure;    Mirrors;   

DOI  :  10.2172/984348
RP-ID  :  PPPL-4531
RP-ID  :  DE-ACO2-09CH11466
RP-ID  :  984348

美国|英语

来源: UNT Digital Library

【 摘 要 】

We describe ab initio, self-consistent, 3D, fully electromagnetic numerical simulations of current drive and field-reversed-configuration plasma formation by odd-parity rotating magnetic fields (RMFo). Magnetic-separatrix formation and field reversal are attained from an initial mirror configuration. A population of punctuated-betatron-orbit electrons, generated by the RMFo, carries the majority of the field-normal azimuthal electrical current responsible for field reversal. Appreciable current and plasma pressure exist outside the magnetic separatrix whose shape is modulated by the RMFo phase. The predicted plasma density and electron energy distribution compare favorably with RMFo experiments. __________________________________________________