Guests Institute for Electrical Engineering and Plasma technology - Prof. Awakowicz

AEPT

19.01.2017 - Prof. Dr. Joost van der Mullen

Copyright: University of York

Vom 06. bis 09. Februar 2017 wird Joost van der Mullen, emeritierter Professor der Technische Universiteit Eindhoven einen Workshop zum Thema "Plasma Characterization and classification using the method of disturbed Bilateral Relations" an der Ruhr-Universität Bochum halten. Prof. van der Mullen ist auch nach seiner Emeritierung weiterhin aktiv in der Forschung tätig und derzeit an der Universiteit Antwerpen an der Fakultät für Chemie beschäftigt. Sein Workshop wird voraussichtlich von 09 bis 17 Uhr in ID 03/653 stattfinden.

Title: Plasma Characterization and classification using the method of disturbed bilateral relations.

Abstract: The aim of this lecture-block is to provide a common basis for engineers, experimentalists, theoreticians and users of plasma sources. This will be done by presenting a plasma classification/characterization tool based on the many aspects of equilibrium departures in plasmas. This leitmotiv is chosen because non-equilibrium is the essential reason behind the success of high-tech plasmas physics. Plasmas can generate large fluxes of photons and radicals but these effluxes will create deviations from the equilibrium.

To find our way in the wilderness of plasma features and sources we will use the method of disturbed Bilateral Relations (dBR), which relates equilibrium disturbing to equilibrium restoring mechanisms. In that way it generates validity-criteria and predicts trends in the deviations from equilibrium. The basic idea of the dBR method is that “equilibrium” has many features, which can be described by specifying the underlying balances of (de)excitation ionization/recombination, absorption/emission etc.. Equilibrium-departure has also many aspects. This can be caused by the efflux of heat, photons and/or (charged) particles.

Several different types of plasmas will be dealt with in various case studies. The tight relation between the (simplified) theory and spectroscopy will be highlighted. Apart from passive spectroscopy (Optical Emission Spectroscopy) we will also give examples of active (laser) spectroscopy like Thomson scattering. 

The use of complicated formulas is avoided; the number of equations will be limited.

AEPT

18.05.2015 - GAST: DR. HELENA BARMINOVA 

Frau Dr. Helena Barminova von der National Research Nuclear University MEPhI Moskau hält am 19.05.2015 ab 10:15 Uhr im Gebäude ID einen Vortrag über "Instabilities of a negative ion beam in the initial stage of its formation". Der Raum ist ID 04/401. Interessierte sind herzlich willkommen!

Research Nuclear University

AEPT

25.11.2014 - GAST: DR. ENRIQUE IGLESIAS

Dr. Enrique Iglesias von der Universidad Simón Bolívar, Caracas, Venezuela ist zzt. Gast am Lehrstuhl AEPT. Er hält an drei Donnerstagen (27.11., 4.12. und 11.12.2014) jeweils von 10:00-12:00 Uhr (ID/04/653) Vorträge.

1) Do, 27.​11.​2014:​ Spec­trosco­py Re­le­vant To­pics For In Situ Me­a­su­re­ment Of The VUV Ra­dia­ti­on Pro­du­ced In A Micro­wa­ve Plas­ma Di­sch­ar­ge - We will di­s­cuss in de­tail an ex­pe­ri­men­tal pro­ce­du­re, which is based upon re­cor­ding the fluo­res­cence light emit­ted by so­di­um sa­li­cy­la­te disks pla­ced at the tar­get po­si­ti­on. Basic spec­trosco­py is­su­es on vi­si­ble and VUV spec­trosco­py will be ad­dres­sed. Preli­mi­na­ry re­sults wil be pre­sen­ted.
2) Do, 4.​12.​2014:​ From Pho­ton Den­si­ty Rate Emit­ted In The Plas­ma To Ra­di­ant Flux At The Tar­get Sur­face. A Pri­mer In Ra­dia­ti­ve Trans­fer - We will di­s­cuss basic con­cepts of ra­dia­ti­ve trans­fer in a plas­ma, and we will apply them to the in­ter­pre­ta­ti­on of our VUV me­a­su­re­ment. We will also ad­dress the ba­sics of ab­sorp­ti­on spec­trosco­py using mo­no­ch­ro­ma­tic beams.
3) Do, 11.​12.​2014:​ The Re­la­ti­ve And Ab­so­lu­te Ca­li­b­ra­ti­on Pro­ce­du­re For A VUV And Echel­le Spec­tro­me­ters Using The Tech­ni­ques That Are Re­gu­lar­ly Ap­p­lied At The AEPT In­sti­tu­te - We will out­li­ne the ge­ne­ral basic is­su­es of the re­la­ti­ve ca­li­b­ra­ti­on of a mo­dern com­pact vi­si­ble spec­tro­me­ter. We will di­s­cuss the re­la­ti­ve ca­li­b­ra­ti­on pro­ce­du­re of a VUV and echel­le spec­tro­me­ters. A basic tech­ni­que of ab­so­lu­te ca­li­b­ra­ti­on of an echel­le spec­tro­me­ter will be pre­sen­ted also.

AEPT

AEPT

28.10.2014 - GAST: DR. RENATE FÖRCH

Dr. Renate Förch vom Fraunhofer ICT-IMM / BioNanoInterfaces, M4N aus Mainz hält am Dienstag, den 2. Dezember 2014, 10:00 Uhr in Gebäude ID 04/401 einen Vortrag über "Active materials for wound healing - Ansätze und Erkenntnisse aus den beiden letzten EU Projekten (EU-Project: Bacterio Safe - Active wound dressing based on biological mimicry & EU-Project: EMBEK1 - Development and analysis of polymer based multifunctional bactericidal materials). Interessierte sind herzlich eingeladen!

Dr. Renate Förch

AEPT

20.06.2013 - GAST: PROF. DR. SAMUEL GRAHAM

Prof. Dr. Samuel Graham vom Georgia Institute of Technology, Atlanta (USA) wird das RD Plasma und den SFB-TR87 am 24. Juni 2013 besuchen. 

Prof. Dr. Samuel Graham