Robustness of waves with a high phase velocity

March 2016 | AIP Conference Proceedings | Paper

Norman Rostoker pioneered research of (1) plasma-driven accelerators and (2) beam-driven fusion reactors. The collective acceleration, coined by Veksler, advocates to drive above-ionization plasma waves by an electron beam to accelerate ions. The research on this, among others, by the Rostoker group incubated the idea that eventually led to the birth of the laser wakefield acceleration (LWFA), by which a large and robust accelerating collective fields may be generated in plasma in which plasma remains robust and undisrupted.

End loss analyzer system for measurements of plasma flux at the C-2U divertor electrode

March 2016 | AIP Conference Proceedings | Paper

An end loss analyzer system was developed to study thermal transport on the open field lines that surround the advanced beam-driven field-reversed configuration (FRC) core of the C-2U experiment. The system is mounted directly to the divertor electrode and consists of gridded retarding-potential analyzers that measure ion current density and ion energy as well as pyroelectric crystal bolometers that measure the total power flux.

Gyrokinetic particle simulation of a field reversed configuration

January 2016 | Physics of Plasmas | Paper

Gyrokinetic particle simulation of the field-reversed configuration (FRC) has been developed using the gyrokinetic toroidal code (GTC). The magnetohydrodynamic equilibrium is mapped from cylindrical coordinates to Boozer coordinates for the FRC core and scrape-off layer (SOL), respectively.

Improved Confinement of C 2 Field Reversed Configuration Plasmas

Improved Confinement of C-2 Field Reversed Configuration Plasmas

February 2015 | Fusion Science and Technology | Paper

C-2 is a unique, large compact-toroid (CT) device at TAE Technologies that produces field-reversed configuration (FRC) plasmas by colliding and merging oppositely directed CTs. Significant progress has recently been made on C-2, achieving ,5 ms stable plasmas with a dramatic improvement in confinement, far beyond the prediction from the conventional FRC scaling.

Feasibility study of microwave electron heating on the C-2 field-reversed configuration device

February 2015 | AIP Conference Proceedings | Paper

Different microwave heating scenarios for the C-2 plasmas have been investigated recently with use of both the Genray ray-racing code and the IPF-FDMC full-wave code, and the study was focused on the excitation of the electron Bernstein wave (EBW) with O-mode launch.