Plasma Physics (Physics/ECE/NE 922) Seminars |
Events During the Week of May 3rd through May 10th, 2015
Monday, May 4th, 2015
- 43 years of fun basic plasma experiments
- Time: 12:00 pm - 1:00 pm
- Place: 1610 Engineering Hall
- Speaker: Noah Hershkowitz , UW-Madison
- Abstract: This talk will present an overview of some of the most enjoyable low-temperature plasma experiments I have carried out with my students over the course of my career. It will begin with the connection between solitons and the Schrödinger equation, and continued with the discovery of cylindrical and spherical soliton-like structures. From moving structures we will progress to stable ones: sheaths and double layers. Where do double layers form? How can we measure double layer potentials? These questions lead to the development of emissive probe techniques. From there we will move on to the Bohm criterion and the first measurements of the full plasma potential variations of sheaths and presheaths in a single-species plasma, and later in two-ion-species plasmas. Finally, our recent measurements of double layers and presheaths in uniform helicon plasma will be presented, which address the earlier unresolved question of where double layers form.
- Host: UW
Tuesday, May 5th, 2015
- No events scheduled
Wednesday, May 6th, 2015
- No events scheduled
Thursday, May 7th, 2015
- No events scheduled
Friday, May 8th, 2015
- No events scheduled