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PROF. DR. UWE CZARNETZKI TRIFFT US-PRÄSIDENTENBERATER DR. JOHN P. HOLDREN
Am 5. Oktober 2015 fand in der Fakultät für Naturwissenschaften und Technik am Yagami Campus der Keio Universität, Japan, ein Treffen mit dem US-Präsidentenberater Dr. John P. Holdren, zuständig für Wissenschaft und Technologie, statt, an dem auch Prof. Dr. Uwe Czarnetzki (Experimentalphysik V) teilnahm. Zum Vortrag von Herrn Holdren kamen etwa 350 Personen, anschließend gab es eine Fragerunde.
Foto © Keio University: Prof. Fumihiko Kannari, Dr. Mahlet N. Mesfin, Prof. Kenichi Hatori, Alexei
Kral, Prof. Kohei M. Itoh, Dr. Yoshiko Lily Ishioka,
Prof. Toshiaki Makabe, Dr. John P. Holdren, Prof. Uwe Czarnetzki
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SYMPOSIUM ON THE OCCASION OF THE 20TH ANNIVERSARY OF THE GERMAN JSPS ALUMNI ASSOCIATION
Prof. Dr. Uwe Czarnetzki participates at the Symposium on the Occasion of the 20th Anniversary of the German JSPS Alumni Association at Meiji University Tokyo, Surugadai Campus, Japan on October 6th, 2015.
The symposium is jointly organized by German JSPS Alumni Association and Japan Society for the Promotion of Science. Prof. Czarnetzki has founded the JSPS Club 20 years ago and was its chair for the first eight years.
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PROF. JOSÉ-MARÍA ALBELLA MARTÍN
On Tuesday, October 6th 2015, Prof. José-María Albella Martín is going to give a tutorial about Thin Film Growth Phenomena. SFB members and all other interested persons with at least a master's degree are highly welcome.
Prof. Albella's tutorial (Thin Film Growth Phenomena) is going to deal with microscopic processes associated with thin film deposition, from the early stages of atom adsorption, nucleation, etc. to vertical growth of films showing different micro/nanostructures. These topics are going to be treated from a phenomenological perspective by using thermodynamic principles. Finally, the effects of the deposition conditions (pressure, temperature, deposition rate, impurities, etc) on the morphological and structural properties of the films are going to be discussed.
Dr. Albella is Senior scientist at the Surface Physics and Engineering Dept. (Institute of Materials Science, CSIC). Before, he has been a Professor at the Applied Physics Department (Universidad Autónoma de Madrid) where he taught several graduate and doctorate courses on semiconductors, electronic materials and thin films. Presently, he conducts a research group devoted to the study of ceramic coatings for surface treatments for tribological applications (mechanical parts, tools, etc.), using PVD and CVD techniques (sputtering, plasmas, ion beams, etc.).
His course will be taught on Tuesday, October 6th, in the classroom ID 04/401, and it has two parts:
Part I: Nucleation on the surface (10:30 - 12:00)
Lunch (12:00-13:00)
Part II: Vertical growth (13:00-14:30)
In order to register please send and email to
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LAPD17 SYMPOSIUMIN HOKKAIDO, JAPAN
The LAPD17 Symposium is organized jointly by Hokkaido University and the National Institute for Fusion Science and takes place from Sunday, 27 September 2015 (evening reception) to Thursday, 1 October 2015 at Gateaux Kingdom Sapporo in Hokkaido, Japan. Prof. Dr. Uwe Czarnetzki from Experimentalphysics V gives a talk about "Time resolved evolution of the EVDF in a ns-pulsed atmospheric pressure plasma jet in helium". The LAPD17 Symposium is organized jointly by Hokkaido University and the National Institute for Fusion Science and takes place from Sunday, 27 September 2015 (evening reception) to Thursday, 1 October 2015 at Gateaux Kingdom Sapporo in Hokkaido, Japan. Prof. Dr. Uwe Czarnetzki from Experimentalphysics V gives a talk about "Time resolved evolution of the EVDF in a ns-pulsed atmospheric pressure plasma jet in helium".
Photo (from left to right): Prof. Katsunori Muraoka from Kyushu University (founding father and Spiritus Rector of the Laser Aided Plasma Diagnostics) and Prof. Dr. Uwe Czarnetzki
The LAPD17 Symposium is the continuation of a biennial series that began at Kyushu University in 1983. It brings together physicists and chemists in diverse areas of laser-based plasma diagnostics including the physics of nuclear fusion, laser physics and low-temperature plasma chemistry and physics. The symposium aims to promote cross-vertilization of these fields via fruitful discussion, and covers all diagnostics using electromagnetic waves (lasers and microwaves) applied to fusion plasmas, industrial process plasmas, environmental plasmas, plasmas for medical applications, atmospheric plasmas, plasmas in liquids and other plasma applications. Topics on hardware developments related to laser-aided plasma diagnostics are also welcome.
link to conference websit
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BANG-DOU HUANG
Bang-Dou Huang from Tsinghua University, Haidian, Beijing, China will work with Prof. Dr. Uwe Czarnetzki (Experimental Physics V) from October 1, 2015 to June 30, 2016 on a China Fellowship. Bang-Dou Huang is currently doing his PhD under Prof. Yi-Kang Pu at Tsinghua University in Beijing, with whom a close collaboration has existed for some time. The six-month stay is made possible by scholarship from his home university. Mr. Huang is investigating the propagation of ns-pulsed ionization waves in dielectric waveguides and has brought extensive experimental equipment to Bochum for this purpose. On the other hand, he is learning the technique of electric field measurement using four-wave mixing through collaboration with Patrick Böhm. In addition, he is working with Dr. Emile Carbon on ns-pulsed discharges in water.
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PROF. RICHARD SYDORA
In September 2015, Prof. Dr. Richard Sydora from the University of Alberta, Canada, will again be a guest in Bochum with Dr. Jürgen Dreher (Theoretical Physics I).
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DR. VOLKER SCHULZ-VON DER GATHEN AM GREMI
Im Rahmen des PROCOPE-Projektes "CoSi2Me" besuchte Dr. Volker Schulz-von der Gathen den Kooperationspartner Dr. Remi Dussart am GREMI in Orléans, Frankreich. In der Zeit vom 14.-19.09. wurden für gemeinsame Untersuchungen neuartige Arrays präpariert und untersucht. Zum Abschluss wurden Arbeiten des innerhalb der Forschergruppe FOR1123 untersuchten selbst-pulsenden Mikro-Plasmajets im Instituts-Seminar vorgestellt. Das Bild zeigt Volke Schulz-von der Gathen und Remi Dussart beim Übergang in den Reinraum des GREMI zur Präparation der neuen Mikro-Plasmarrays.
- link to GREMI
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DR. ANTE HECIMOVIC VISITED MONS
Postdoc Dr. Ante Hecimovic visited Mons in period August 20th-27th, 2015 within the frame of a joint collaboration with Dr. Nikolay Britun and Dr. Stephanos Konstantinidis from University of Mons, Belgium. The focus of collaboration is to expand understanding of physics behind the plasma inhomogeneities, i.e. spokes, in a HiPIMS discharge.
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MARC VAN DER SCHANS
Marc van der Schans from the Department of Applied Physics, Elementary Processes in Gas discharges (EPG) at TU Eindhoven (Netherlands) will be visiting PhD student Patrick Böhm (Experimental Physics V) from 01-09 September 2015 to complete the measurements of the meeting from 27-31 July 2015. The planned goal of the cooperation, the application of the electric field measurement technique, which is further developed by Patrick Böhm in the context of his PhD thesis at the Ruhr-University, at Marc van der Schans' was extended by some measurement series after optimization of both setups. Due to the success of this cooperation, which provided more than just a "proof of concept" after the first week, there is nothing standing in the way of setting up a corresponding setup for the electric field measurement technique, which is currently only represented in one other group worldwide and is also known as "E-CARS", at the TU Eindhoven.
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ICECUBE SUMMER RESEARCH EXPERIENCE WITH RESEARCHERS AT RUHR UNIVERSITÄT BOCHUM
International Research Experiences for Students (IRES) is a program funded by the National Science Foundation to support active participation of US undergraduates in international research projects. Laura Lusardi from New Richmond, WI, and Kelsey Kolell from Fond du Lac, WI, participated in the IRES program through UW–River Falls to work on IceCube research for the summer.
We are both third-year undergraduate students, studying physics at the University of Wisconsin–River Falls. This summer, we had the wonderful opportunity to travel to Germany through IRES to work with IceCube researchers. Even though we both ended up attending the same university, we took wildly different paths to get here.
Kelsey:
Going into my junior year of high school, I had every intention of majoring in chemistry once I got to college. This quickly changed after I took a physics class and fell in love with the subject. I had a great teacher who was really enthusiastic about physics and wanted her students to love it as much as she did. I changed direction and started to investigate colleges for studying physics. My high school teacher recommended that I look into where she earned her masters in physics, which is how I ended up studying physics and math at the UW–River Falls.
Laura:
Ever since I was a child, I've had a keen interest in astronomy. My interest piqued as I grew older, and I knew that astrophysics was what I wanted to pursue in college. Aside from UW–River Falls' phenomenal physics program, its involvement with the IceCube project was one of my greatest motivations for attending school there. I had hoped to get involved with the project during the school year, but the process actually began before I even started my first year. It was all thanks to our professor, Dr. Surujhdeo Seunarine. He was on a committee for a scholarship that I was applying for, and during that interview I expressed my interest in astrophysics. It was also during this time that I met Kelsey, who turned out to be one of my colleagues and best friends. Later that winter, when applications were being accepted for the IceCube summer internship, he remembered my interest and advised both of us to submit an application.
Kelsey:
When I came to River Falls, I had neither heard of the IceCube project nor had any knowledge of particle astrophysics. It just so happened that my advisor was Dr. Seunarine. Once he heard that I wanted to go into research, he told me about the project and about the chance to work on it over the summer.
We were unsure whether we would get into the program due to our lack of experience, but we were both extremely surprised to find that we had in fact been accepted! This was the beginning of a spectacular year working with each other and IceCube. During our ten weeks abroad, we worked with two PhD students, Fabian Bos and Sebastian Schöneberg, at the Ruhr Universität Bochum.
Laura:
I worked with Fabian on calibration of the detector using sun and moon shadows. Although IceCube's main goal is to detect high-energy neutrinos, it is important to make sure that we can also use it to see the sun and the moon. IceCube may be a telescope, but it doesn't have a lens through which to look, so we have to utilize a different method to see these celestial bodies. Both the sun and the moon create “shadows” by blocking incoming cosmic rays, which we see as a deficit of these cosmic rays within the detector. This information is then used as a calibration tool as well as to improve the angular resolution of the detector itself.
Over the course of the summer, I worked on improving my programming skills while learning about the different aspects of the project. I focused on two distinct analyses used in calculating cosmic ray deficits. I learned how use the different tools for coding, how to pull and process the IceCube data, and how to write and run the programs that generate the plots. Near the end of the summer, I was able to write my own programs and even improve upon some of the existing ones to generate new plots of the shadows.
Kelsey:
I worked with Sebastian on simulation of atmospheric neutrinos and muons. The goal for Sebastian’s project is to create simulations of the atmospheric neutrino flux at low energies. When cosmic ray particles enter the atmosphere, they interact with other particles creating a shower of secondary particles. With high-energy particles, the shower of secondary particles follows the same path as the primary particle, but for particles at lower energies, the showers branch out, like a cone of secondary particles, which casts a ring on the surface of the Earth. Each of these rings has a different percentage of secondary particles, some of which may hit the detector even if the path from the primary particle would have missed it and vice versa. My job was to figure out how many of the secondary particles would hit the detector at different angles. To do this, I made a lot of triangles and did a lot of trigonometry. Then, I was able to develop a procedure to find how much of the detector was being hit with the secondary particles. This is important, because if we can figure out how to account for the geometry without actually simulating it, we can save a lot of computing processing time.
By the end of the summer, we both made a lot of progress. Not only did we learn a lot about programming and physics, but more importantly we learned about working with graduate students and communicating with others about our work, all the while navigating a foreign country. It has been a truly remarkable summer. We have both learned so much during our time in Germany, met so many wonderful people, and made lots of new friends. This summer has opened our eyes to what it is really like to work in physics. We will both be able to use all the experiences that we gained this summer to help us achieve our dreams of becoming research physicists.
Photo (c) IceCube: Kelsey, Laura, Sebastian, and Fabian at the Ruhr Universität Bochum.
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SIYAO XU
Siyao Xu from Peking University, China, will give a talk on "Damping of MHD turbulence in partially ionized media" on September 2, 2015 as part of the Space and Astrophysics Seminar. The talk has been held NB 7/67 at 10:15 am. Those interested are welcome to attend!
Siyao Xu is a guest at the Institute of Theoretical Physics IV in August and September.