The plasma source of the Large Plasma Device at University of California ,

The Large Plasma Device at the University of California, Los Angeles has recently been upgraded. The plasma is now 18 m long the device is 22 m long and is designed to produce a 0.36 T axial magnetic field. Its plasma source has also been upgraded, incorporating a 1 m square heater, a 72 cm diameter cathode and anode, and associated heat shields and reflectors. The barium oxide coated cathode is heated to 750 °C and can produce plasmas of diameters up to 0.9 m diameter depending on the magnetic field configuration , and densities up to 7 1012 cm−3 with a spatial uniformity of ±10%. © 2006 American Institute of Physics. DOI: 10.1063/1.2150829