Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements

Details Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements

2009-07-01

arxiv.org/abs/0907.0240v1

Physics

Plasma Physics

Scientific paper

A two-dimensional dust crystal levitated in the sheath of a modified Gaseous Electronics Conference (GEC) reference cell is manipulated by heating or cooling the lower electrode. The dust charge is obtained from top-view pictures of the crystal using a previously developed analytical model. By assuming a simple force balance, and measuring the radial confining force, the vertical electric field profile in the sheath is reconstructed. The dust crystal is shown to levitate on the plasma side of the Bohm point. Finally, it is shown that the ion drag plays an important role in the vertical force balance, even for large dust grains.

Affiliated with

Also associated with

No associations

Rating

Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the sheat electric field using thermophoresis in dusty plasma. Part II: Experimental measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-730643