BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Date iCal//NONSGML kigkonsult.se iCalcreator 2.20.4// METHOD:PUBLISH X-WR-CALNAME;VALUE=TEXT:ÌÇÐÄÔ­´´ BEGIN:VTIMEZONE TZID:America/New_York BEGIN:STANDARD DTSTART:20201101T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST END:STANDARD BEGIN:DAYLIGHT DTSTART:20210314T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:calendar.405841.field_event_date.0@www.wright.edu DTSTAMP:20260219T085752Z CREATED:20201116T184100Z DESCRIPTION:Dr. Jeremiah D. WilliamsDepartment of PhysicsWittenberg Univers ity\, Springfield\, OH 45504jwilliams@wittenberg.eduAbstractIn nature\, ma tter naturally exists in one of four states.  The most common (and least f amiliar) of these states is a plasma\, an ionized gas composed of ions\, e lectrons and neutral particles.  When particulate matter enters a plasma\, it becomes charged through interactions with the electrons and ions in th e background plasma. Once charged\, this third charged species fully inter acts with the other plasma components and self-consistently alters the pro perties of the surrounding plasma.  The resulting system is known as a dus ty\, or complex\, plasma\; a non-linear system that is notably more comple x than the traditional plasma and supports a wide range of new plasma phen omena including new wave modes and strongly coupled phenomena.These dusty plasmas are ubiquitous in nature and in laboratory and\, in many of these environments\, are exposed to energetic electrons. These interactions can lead to a wide range of plasma instabilities and have several industrial i nteractions. Despite this\, the interaction between dusty plasmas and ener getic electron beams have not been extensively examined.  Recent experimen tal studies of the interaction of a narrow\, pulsed electron beam (EB) wit h energies from 10 – 15 keV with dusty plasma have revealed a system rich with physics that arise from the interaction between the charged dust grai ns and the electron beam.In this talk\, I will present a brief introductio n to dusty plasmas and an overview of recent experimental results with sup porting molecular dynamics simulations showing the interaction of an elect ron beam with a dusty plasma system.  This work is supported by National S cience Foundation Grant Number PHY-2010122.Bio: Jeremiah Williams grew ear ned a BS in Physics and Mathematics from Dickinson College in 1998 and an MS in Physics from UCLA in 2000.  After completing his masters degree\, he was a visiting Instructor at Illinois Wesleyan University for three years before returning to complete his PhD at Auburn University in 2003.  He jo ined the faculty of Wittenberg University as a member of the Physics Depar tment\, where he teaches courses across the physics curriculum\, directs t he Wittenberg University Plasma Laboratory and is currently the chair of t he Physics Department.  His research is currently supported by the Nationa l Science Foundation\, the Department of Energy and NASA.  WebEx Meeting l ink:https://wright.webex.com/wright/j.php?MTID=m8132ab7a42791df6fa5375ac4f dc498cMeeting number: 172 516 3608\; Password: Pg9JayEqE73 Event Webpage: https://wright.webex.com/wright/j.php?MTID=m8132ab7a42791df6fa5375ac4fdc49 8c DTSTART;TZID=America/New_York:20201118T132500 DTEND;TZID=America/New_York:20201118T143000 LAST-MODIFIED:20201116T210919Z SUMMARY:Physics Seminar: Experimental and Molecular Dynamic simulations of the interaction of a dusty plasma system with an energetic electron beam URL;TYPE=URI:/events/physics-seminar-experimental-mol ecular-dynamic-simulations-interaction-dusty-plasma-system END:VEVENT END:VCALENDAR