Status and plans for the PFRC-2 device

POSTER

Abstract

The PFRC-2 is magnetized, steady-state, RF-heated plasma device on which research is performed to develop small, clean fusion reactors suitable for mobile power plants or propulsion of spacecraft throughout the solar system. With a duty of factor near 1{\%}, the PFRC-2 forms high-beta plasmas of up to 300 ms duration and radius to 8 cm with line-average electron density exceeding 5e12/cc and a minority electron temperature exceeding 600 eV. Up to 70 kW of RF heating power at 6 MHz has been applied using the RMF\textunderscore o method. The present maximum vacuum magnetic field is 300 G. Plans for the next year focus on ion heating to an average energy of 600 eV at a peak density of 1e13/cc. To achieve this, the vacuum magnetic field will be increased to in excess of 600 G, the RMF frequency reduced to below 2 MHz, and the RMF power increased to 200 kW corresponding to B\textunderscore RMF $=$ 15 G. At these parameters stochastic ion heating is predicted.

*This work is supported by grants from ARPA-E, NASA, and IMOD as Strategic Partnership Projects with Princeton Satellite Systems under DOE Contract Number DE-AC02-09CH11466.

Authors

  • Samuel Cohen

    • PPPL
  • B. Alessio

    • Princeton University
  • B. Berlinger

    • PPPL
  • C. Brunkhorst

    • PPPL
  • C. Swanson

    • PSS
  • Cristian Ruano-Arens

    • Princeton University
  • E. S. Evans

    • Princeton Plasma Physics Laboratory
    • PPPL
  • G. Gonzalez Jusino

    • U. Puerto Rico
  • J. Cohen

    • NC State U.
  • K. R. Torrens

    • Princeton University
  • Peter Jandovitz

    • PPPL
    • Princeton University
  • S. Vinoth

    • Princeton Plasma Physics Lab
    • PPPL
  • Natalie Cannon

    • Cal State U., Long Beach
    • California State University, Long Beach