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08.09.2010 - Beilei Du bei Prof. Nader Sadeghi an der Joseph Fourier Universität
Vom 5.7.2010 bis 3.9.2010 besuchte Beilei Du (Institute für Plasma- und Atomphysik) Prof. Nader Sadeghi am Laboratoire de Spectrométrie Physique (LSP) der Joseph Fourier Unversität in Grenoble. Ziel war die Messung der Gastemperatur in einer selbstpulsenden dünnen Kathoden-Entladung. Die Messung war erfolgreich. Durch die Untersuchung des Emissionsspektrums wurden die Kenntnisse über die Entladung erweitet.
Dieser Aufenthalt wurde durch das Research Department ermöglicht.
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Padma Shukla at International Congress on Plasma Physics, Santiago de Chile
The 2010 International Congress on Plasma Physics (2010ICPP) in Santiago de Chile was held during the period 8-13 August 2010. This Conference was partially sponsored by International Union of Pure and Applied Physics (IUPAP), and was attended by more than 250 delegates from all over the world. The 2010ICPP scientific program included 15 invited plenary talks, 23 invited topical talks, 45 oral contributions, and 160 poster contributions. The presentations reflected the present status of advancement and achievements in basic and applied plasma physics, in low-temperature processing and dusty plasmas, in space and astrophysical plasmas, in fusion plasmas (both the magnetic and inertial confinement fusion), as well as novel aspects of extreme states of plasmas in the universe and dense quantum plasmas, and plasma based charged particle acceleration.
During the 2010ICPP Santiago de Chile, IUPAP C.16 Chairman and RD Plasmas with Complex Interactions's PI Professor Padma Kant Shukla delivered a tutorial lecture on "Introduction to Quantum Plasma Physics". He also presented in an officual ceremony the IUPAP C.16 Young Scientist Prize and Medal in Plasma Physics to Dr. Mattew Hole (ANU, Australia) for his contribution to the measurement, interpretation, analysis, and understanding of wave phenomena in plasmas, as well as his research leadership to champian an Australian research engagement with ITER. Dr. Hole was invited to ICPP2010 to deliver a plenary talk dealing with his Prize.
Photo: Prof. Padma Shukla (left) & Prof. Predhiman Krishan Kaw, Director IPR India (right)
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Plasma Doctoral Workshop
The Research Department "Plasmas with Complex Interactions" organizes in cooperation with the research group FOR 1123 "Microplasmas" and the SFB-TR 87 a workshop for PhD students. This workshop has been held on August 9 and 10, 2010 in Rolduc, Kerkrade (Netherlands).
Starting on Monday morning, the PhD students will present and discuss their current research results individually or in groups of two.
In addition to the Bochum students, Pascal Chabert and Claudia Lazzaroni (both LPP, France) as well as doctoral students from Paderborn and RWTH Aachen will also participate.
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Culham Plasma Physics Summer School 2010
The Research Department enabled the participation of Michael Zacharias, Tomislav Skoda, and Michal Michno in the „Culham Plasma Physics Summer School 2010“ from July 12th to July 23rd. This school was the 47th in the series organized at Culham Science Centre, near Oxford. The school was addressed to graduate and PhD students from all over the world and offered lectures in fundamental principles of plasma physics on the one hand and a broad range of applications on the other hand. The participants deepened their understanding of MHD and kinetic theory and broadened their knowledge by studying the applications in fusion, astrophysics and industrial plasmas. The lectures on space plasmas by Dr. Jonathan Eastwood from the Imperial College London and on astrophysical plasmas by Dr. Philippa Browning from the University of Manchester were of particular interest for the Research Department. There was also a lot of room for scientific exchange and the participants made valuable contacts to other researchers.
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Dr. Marian Lazar at COSPAR 2010
The Scientific Assembly of the Committee on Space Research (COSPAR) is the biggest interdisciplinary conference on space science worldwide, and this year it took place in Bremen (July 18-25, 2010). A large number of technical exhibitions from space industry and research have also been associated to the scientific program.
The Research Department enabled the participation of Dr. Marian Lazar to this special event. He presented new kinetic models for the plasma waves and instabilities based on the existence of suprathermal populations in the solar environments: the corona, the solar wind and the Earth’s magnetosphere. Waves and instabilities play an important role in the acceleration and general transport processes of electrons and ions in interplanetary space. Modeling deviations from Maxwellian equilibrium with suprathermal distributions of Kappatype provides better predictions and fits to the observations. This was a great opportunity to find an increasing interest and support for further analysis of these realistic models, but also to establish new valuable contacts.
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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.
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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
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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.
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Twelfth International Conference on Plasma Surface Engineering (PSE) in Garmisch-Partenkirchen
The Twelfth International Conference on Plasma Surface Engineering (PSE) was held in Garmisch-Partenkirchen, Germany, from 13th to 17th July, 2010. The aim of the conference is to promote Fundamentals and applications of plasma and ion beam techniques in surface engineering. PSE was a great opportunity to present and observe recent progress in research and development and industrial applications. The topics span a wide range from fundamentals such as elementary plasma diagnostic, through empirical studies which establish the relationships between process parameters and the structural and functional properties of modified surfaces, towards the application in industrial production. It had two dedicated sessions for High Impulse Power Magnetron Sputtering (HIPIMS), where recent achievements in the field were presented. Prof. Dr. Achim Von Keudell and Dr. Ante Hecimovic attended the conference where they had a chance to find about the latest achievements in the field of plasma surface enfgineering, furthermore they made valuable contacts with experts from the field and agreed on future collaborations.
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Dr. Marian Lazar at SCOSTEP
This year (July 12-16), the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) has organized the twelfth in the series of Solar-Terrestrial Physics (STP) symposia in Berlin. SCOSTEP organizes exchange meetings and scientific programs in the solar-terrestrial environment. The current program is Climate andWeather in the Sun-Earth System (CAWSES), a scientific approach to understanding the short term (Space Weather) and long term (Space Climate) variability of the integrated solar-terrestrial environment, and for its societal applications; and CAWSES-II: Toward Solar Maximum runs from 2009 to 2013.
Dr. Marian Lazar attended this symposium taking opportunity to make valuable contacts and discuss on the present challenges in modeling the solar wind plasma turbulence, its potential drivers and the role played in the evolution of our space weather and the Earth’s climate. In coronal outflows and solar wind plasmas, the presence of interplanetary magnetic field and heat fluxes give rise to anisotropies of plasma particles, which quickly lead to the onset of plasma instabilities. Recent fundamental investigations of the kinetic instabilities (within the group of Prof. Reinhard Schlickeiser) create premises for a complete characterization and a deep understanding of their role in space plasma.
Scientific Committee on Solar-Terrestrial Physics, Berlin 2010
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Prof. von Keudell auf der Gordon Conference "Plasma Processing Science and Societal Grand Challenges"
Prof. Achim von Keudell war vom 11.-16. Juli 2010 bei der Gordon Conference "Plasma Processing Science and Societal Grand Challenges" im Colby-Sawyer College, New London, New Hamshire, USA.
At the beginning of the 21st century, humanity faces significant grand challenges in the areas of energy, human health, and environmental sustainability. Low temperature plasmas will at the heart of many key enabling technologies that are needed to provide solutions for these grand challenges. The 2010 Gordon Research Conference on Plasma Processing Science will feature a comprehensive program that will highlight the most cutting edge scientific advances in low temperature plasma science and will explore the applications of low temperature plasma technology relative to many grand societal challenges. Fundamental science sessions will focus on plasma kinetics, plasma surface interactions, and recent trends in plasma generation and multi-phase plasmas. Application sessions will explore the impact of plasma technology in renewable energy and the production of fuels from renewable feedstocks, plasma-enabled medicine and sterilization, and environmental remediation and waste treatment. The conference will bring together in an informal atmosphere leaders in the field with junior investigators and graduate students. The special format of the Gordon Conferences, with programmed discussion sessions and ample time for informal gatherings in the afternoons and evenings, will provide for a fertile atmosphere of brainstorming and creative thinking among the attendees.