Title :
A 2.45-GHz Microwave Air Plasma Under a Double-Hexapole Magnetic Field
Author :
Lee, Henry V., Jr. ; Arciaga, Marko E. ; Rosario, Leo Mendel ; Ting, Julie Anne ; Ulano, April ; Tumlos, Roy B. ; Ramos, Henry J.
Author_Institution :
Nat. Inst. of Phys., Univ. of the Philippines, Diliman, Philippines
Abstract :
Presented here is an image of a microwave air plasma produced from a 2.45-GHz source. To assist in the plasma ignition and confinement, a set of samarium-cobalt (Sm-Co) permanent magnets arranged in a double-hexapole configuration is used. In the image presented, air in the vacuum chamber is ignited into the plasma at a pressure of 3 × 10-3 torr. The plasma exhibits a distinct pattern where brighter areas appear at alternate regions of magnetic cusps. Based on particle-in-cell simulations, the bright areas coincide with regions where the electron energies and electron densities are relatively high.
Keywords :
air; plasma confinement; plasma density; plasma production; plasma radiofrequency heating; plasma simulation; plasma sources; plasma temperature; double hexapole configuration; double hexapole magnetic field; electron density; electron energy; frequency 2.45 GHz; magnetic cusps; microwave air plasma; particle in cell simulations; plasma confinement; plasma ignition; pressure 0.003 torr; samarium-cobalt permanent magnets; vacuum chamber; Electromagnetic heating; Magnetic resonance imaging; Microwave devices; Microwave imaging; Plasmas; Simulation; Plasma devices; plasma properties; plasma simulation; plasma sources;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2161494
