Investigations of a ring shaped sheath using a dusty plasma

POSTER

Abstract

Dusty plasma particles in a confining potential ring regularly form into a single layer dust ring that sits above the electrode. The ring shaped sheath is generated using an electrode consisting of a variable aperture with a center boss. The height of the ring above the electrode can be measured and depends on a number of variables including the radius of the aperture. Measurements showed that the smaller the aperture, the higher the dust ring sits above the electrode. Measurements of the confining potential were also performed using the vibrational modes of the trapped dust particles.

Authors

  • William Theisen

    Ohio Northern Univ

  • Petru S. Fodor

    Kettering University, Kettering Unviersity, Ohio Univ, University of Michigan, Miami University of Ohio, Cleveland State University, Roswell Park Cancer Institute, Electro-Optics Program, University of Dayton, Dayton, OH 45469, Nano-C, Inc., U.S. Army Research Laboratory, University of Akron, Ohio Northern Univ, DESY, Cleveland Clinic, University of Waterloo, University of Toledo

  • Petru S. Fodor

    Kettering University, Kettering Unviersity, Ohio Univ, University of Michigan, Miami University of Ohio, Cleveland State University, Roswell Park Cancer Institute, Electro-Optics Program, University of Dayton, Dayton, OH 45469, Nano-C, Inc., U.S. Army Research Laboratory, University of Akron, Ohio Northern Univ, DESY, Cleveland Clinic, University of Waterloo, University of Toledo