Edmund Schüngel at the ESCAMPIG in Novi Sad, Serbia
The cooperation between the group of Prof. Zoltan Donkó at the "Research Institute for Solid State Physics and Optics" in Budapest and the Chair of Plasma and Atomic Physics could be intensified by a research stay in Hungary, which was made possible by the Research Department Plasma.
The joint participation in the ESCAMPIG conference ("Europhysics Conference on the Atomic and Molecular Physics of Ionized Gases") offered the opportunity to collectively present the results obtained in the collaboration between Prof. Donkó's institute and the Chair of Experimental Physics V in Bochum. Through the joint conference contributions of Dr. J. Schulze from Prof. Donkó's group and myself ("The Electrical Asymmetry Effect in geometrically asymmetric discharges", "Charge dynamics in capacitively coupled radio frequency discharges", "Excitation dynamics in electrically asymmetric capacitively coupled radio frequency discharges - experiment, simulation, and model") the results of the RD Plasma cooperation were presented on an international level. The journey from Budapest was very economical, so that the low costs are justified by the necessity and importance of this presentation at an ESCAMPIG (13.07.2010 to 17.07.2010), which is strongly perceived in our field of work.
Budapest
21.07.2010 - Edmund Schüngel am „Research Insitute for Solid State Physics and Optics“ in Budapest
Der im Rahmen des Research Department Plasma tätige Lehrstuhl für Plasma- und Atomphysik arbeitet bereits seit einigen Jahren mit der Gruppe um Prof. Zoltan Donkó am „Research Insitute for Solid State Physics and Optics“ in Budapest zusammen. Die Simulationen von kapazitiv gekoppelten Radiofrequenzplasmen bei niedrigen Drücken aus Ungarn bieten einen komplementären Ansatz zu den experimentellen Untersuchungen, die in Bochum stattfinden. Im Rahmen dieser Zusammenarbeit wurde mir die Möglichkeit gegeben, Prof. Donkó und sein Team in der Zeit vom 20.06.2010 bis zum 18.07.2010 zu besuchen. Durch den Besuch in Budapest, den das Research Department Plasma mir dankenswerter Weise finanziert hat, habe ich mein Wissen über Simulationstechniken vertiefen können. Neben der Planung weiterer gemeinsamer Projekte stand erstens die Untersuchung von Sekundärelektronen und deren Wirkung auf die Kontrolle von Ionenenergie und –fluss in klassischen Zweifrequenzentladungen im Mittelpunkt meines Forschungsaufenthaltes. Bis dahin unvereinbare Ergebnisse, die in der Literatur vorzufinden sind, konnten über diesen Einfluss erklärt werden. Zweitens bietet die Simulation die Möglichkeit, physikalische Ideen zu realisieren, die im Experiment nicht ohne einen erheblichen Aufwand getestet werden können. Dies hat sich besonders bei der Untersuchung von Entladungen, die mit wesentlich mehr als zwei Frequenzen betrieben werden, gezeigt. So konnte abschließend bei beiden Themen vereinbart werden, wie entsprechende Experimente an der Ruhr-Universität Bochum innerhalb des Research Department Plasma in Zukunft die Simulationsergebnisse bestätigen können.
Lehrstuhl für Plasma- und Atomphysik
Jens Dreyer at the IceCube Collaboration Meeting
The IceCube neutrino telescope is currently the most powerful instrument for observing neutrinos from astrophysical plasmas. All scientists involved in this project are united in the IceCube Collaboration. This international collaboration meets semi-annually, in the spring in the U.S. and in the fall in Europe. The collaboration meetings are used for exchange of ideas and discussion among the members, who come from the USA, New Zealand, Japan, Switzerland, Sweden, Belgium and Germany, among others. Mr. Dreyer and Mr. Olivo attended the collaboration meeting in Annapolis, Maryland, USA, from May 1 to 10, 2010. During the meeting, Mr. Dreyer presented a software project that is being conducted in Bochum at the RD. This project deals with the reprogramming and improvement of a central software component of the simulation chain of IceCube and was therefore received with great interest.
Furthermore, Mr. Dreyer was able to discuss ideas for future data analysis with many experts of the collaboration. Furthermore, Dr. Dreyer represented the interests of the Research Department within the IceCube collaboration on the Collaboration Board. Martino Olivo gave a talk on neutrino production in Gamma Ray Bursts, which was also received with great interest by the collaboration. Furthermore, Mr. Olivo was able to discuss the results of a publication dealing with neutrino production within shocked plasmas in Gamma Ray Bursts with the specialists of the IceCube collaboration.
RD Plasma zeigt starken Auftritt bei der PSE 2010
The Research Department "Plasmas with Complex Interactions" was represented at this year's 12th International Conference on Plasma Surface Engineering (PSE) in Garmisch-Partenkirchen with no less than two invited lectures, which met with very great interest and resonance among the conference participants. The plenary lecture by Professor Achim von Keudell dealt with the tailoring of ion energy distribution functions and the controlled growth of aluminum oxide layers. The lecture by Professor Ralf Peter Brinkmann in the tutorial "Fundamentals and Trends of Plasma Surface Processing" dealt with more general aspects of modeling technical plasmas.