Helicon Plasma Source Development at ORNL
Abstract
We are planning to build and characterize a helicon plasma source to be used as a prototype of a new plasma source for the Radio Frequency Test Facility (RFTF) at ORNL. The ultimate goal is to expand the capabilities of RFTF in the areas of edge plasma/RF interaction studies and testing of high power Ion Cyclotron Range of Frequencies (ICRF) antennas by increasing the achievable plasma density to ~5x10^17 m-3. This dual-use device will also be employed in optimization studies of an RF plasma source for space propulsion applications. The source will use a 0.48 m long solenoid magnet producing magnetic field strengths up to 0.4 T. The plasma will be produced in a 5 cm diameter quartz tube located in the magnet bore. The high field strength may be required to efficiently fuel an adjoining chamber in which the background magnetic field amplitude is also large. Several source antenna designs will be tested, including phased multiple-element designs. Initial operating results will be presented.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 1998
- Bibcode:
- 1998APS..DPPR8M202G