Institutskolloquium des IPP 2024

Wissenschaftliches Kolloquium des IPP in Garching und Greifswald mit Videoübertragung


Aspects and problems of tritium in the biosphere

Institutskolloquium
  • Datum: 07.06.2024
  • Uhrzeit: 10:30 - 12:00
  • Vortragender: Prof. Dr. Clemens Walther
  • Clemens Walther is Professor at the Leibniz University Hannover, Germany and Head of the Institute of Radioecology and Radiation Protection. He is president of the German-Swiss Society for Radiation Protection and Head of the Steering Board of the Competence Center Radiation Research (KVSF). Since 2015 he is a member of the German Commission for Radiation Protection. Prof. Walther’s past appointments include being Dean of the Faculty of Mathematics and Physics (2019–2021), Chair of the Nuclear Chemistry Section of the German Chemical Society (2019-2022), Head of the European Network on Nuclear and Radiochemistry Education and Training (2016–2022), Member of the extended governing board of the German Society for Mass Spectrometry (DGMS) (2012–2015) and Head of the mass spectrometry division of the German Physical Society (DPG) (2012–2015).
  • Ort: IPP Garching
  • Raum: Arnulf-Schlüter Lecture Hall in Building D2 and Zoom
  • Gastgeber: IPP
  • Kontakt: karl.krieger@ipp.mpg.de
Tritium is a natural cosmogenic nuclide and omnipresent in natural waterbodys. However, man made nuclear activities have strongly increased the global inventory. The talk will cover natural and anthropogenic sources, the radioecological modelling of tritium migration in the environment and dose assessment to humans. Tritium will be compared to other radionuclides with respect to peculiarities of uptake and biological half life in the human body. Specific damage to tissue is rather low, due to its limited beta decay energy. This leads to high exemption limits for handling and high specific activities for clearance and discharge during the operation of nuclear facilities. Regulatory limits and dose coefficients as suggested by WHO, IAEA and ICRP as well as German legislation are discussed. Finally, the discharge of contaminated water from the Fukushima Daichi site will radiologically be set into perspective. [mehr]

Overview of status of Fusion Technology Development and Deployment

Institutskolloquium
  • Datum: 26.04.2024
  • Uhrzeit: 10:30 - 12:00
  • Vortragende: Dr. Sehila M. Gonzalez de Vicente
  • Sehila M. Gonzalez de Vicente holds a PhD in in Materials Physics by Universidad Complutense de Madrid (Spain) and a MBA by the EOI Business School. She has 20 years of experience in fusion technologies and materials and is currently the Global Director of the Fusion Energy programme at Clean Air Task Force. Previously she was working at the International Atomic Energy Agency as Nuclear Fusion Physicist for more than 8 years. Before joining IAEA, she was the Responsible Officer of the Fusion Materials development programme at EFDA (European Fusion Development Agreement) / Eurofusion, in Garching (Germany). In addition, she has been appointed chair of the Project Committee of the International Fusion Energy Research Centre (IFERC) project between Europe and Japan as well as vice chair of the Karlsruhe Institute of Technology (KIT) scientific advisory board in the research field of Energy. She has been chair of the 9th Annual Assessment of Fusion for Energy, member of the UK’s Fusion Technical Advisory Group, member of the Review Committee for the European Spallation Source Re-baseline Review as well as member of the IFMIF-DONES España Technical Advisory Committee. She is co-editor and contributing author of the book Fundamentals of Magnetic Fusion Technology. She is also the Chair of the Women in Fusion Group.
  • Ort: IPP
  • Raum: Zoom Meeting
  • Gastgeber: IPP
  • Kontakt: karl.krieger@ipp.mpg.de
Recent years have seen a significant, quickly accelerating dynamic on the path towards making fusion a real option to meet net zero carbon emissions targets. International and national Government-funded programs are assisting the development of fusion technologies with a longer-term deployment window, with private fusion technology developers are focused on the commercialization of fusion over the next decade. Governments are establishing enabling programs to help progress these enterprises in parallel to the traditional public R&D programs. The technological development of fusion spans the three areas: (i) maturing fusion science, (ii) new enabling technologies (iii) private investment in fusion.Fusion has already been demonstrated on a small scale, with a noted recent energy breakeven obtained with laser based inertial fusion at LLNL in December 2022, with the expected scaling up in the next few years lead by the private sector’s demonstration machines. It is the scaling up of the process that presents the key challenge to the commercialization of fusion technology, which require facilities reviewed in this webinar There is a significant gap in the availability of engineering data on the effects of intense fluxes of high energy neutrons on materials and components, a gap that both public and private programs must address. International cooperation and access to facilities, to enable their integration into the overall international effort, to help identify the optimum technological choices, will define the success of fusion as a power-generating option. Regulatory uncertainty and standardization also need to be addressed, where the development of global codes and standards, coupled with the harmonization of regulations, is a necessary requirement for the deployment of fusion as a viable energy source.The international cooperation and access to worldwide facilities, as well as integral planning of how a particular facility is fitting in a structured programme to obtain results that allow to make optimum choices is of paramount importance to have a real progress in Fusion deployment. [mehr]

Photonic Terahertz Systems

Institutskolloquium
  • Datum: 15.03.2024
  • Uhrzeit: 10:30 - 12:00
  • Vortragender: Prof. Dr. Idelfonso Tafur Monroy
  • Idelfonso Tafur Monroy obtained his MSc from Saint Petersburg University of Telecommunications (Russia) in 1992 and his PhD in Electrical Engineering from Eindhoven University of Technology (TU/e) in 1999. He also took courses at Stockholm University (Sweden), KTH Royal Institute of Technology (Sweden) and Utrecht University. Tafur Monroy worked as Assistant Professor in Electro-Optical Communications at TU/e from 1999 to 2006, after which he became Associate Professor and later Full Professor at DTU Fotonik (Denmark). In the meantime, Tafur Monroy also worked at Beijing University of Post and Telecommunications (China), UC Berkeley (USA) and ITMO University (Russia) as visiting professor. Tafur Monroy founded Bifrost Communications in 2015. In 2017, he returned to TU/e to become Full Professor in the Electrooptical Communication (ECO) group of the electrical engineering department and to join the Institute for Photonic Integration. He is currently the leader of the team Quantum and Terahertz Systems (QTS) within the ECO group.
  • Ort: IPP Garching
  • Raum: Günter-Grieger Lecture Hall (Greifswald) and Zoom
  • Gastgeber: Dmitry Moseev
  • Kontakt: dmitry.moseev@ipp.mpg.de
In this talk we review the increasing interest on Terahertz Systems ranging from 6G wireless data links to radar systems for autonomous driving and sensing and radiometers. We discuss and elaborate on the role of photonic technologies and the road towards systems-on-hip. [mehr]

The New Approach to the European Roadmap to Fusion Energy

Institutskolloquium
  • Datum: 21.02.2024
  • Uhrzeit: 10:30 - 12:00
  • Vortragender: Prof. Dr. Ambrogio Fasoli
  • Ambrogio Fasoli is Programme Manager (CEO) of the European Consortium for Fusion Energy, EUROfusion, Director of the Swiss Plasma Centre at the École Polytechnique Fédérale de Lausanne (EPFL) and Delegate to the Provost of the EPFL. Ambrogio Fasoli, an honorary member of the American Physical Society, studied at the University of Milan and obtained his doctorate at the EPFL. After conducting experiments on the European JET tokamak in the United Kingdom, he became a professor at MIT in the United States, where he worked from 1997 to 2001, before being appointed professor at EPFL. From 2014 to 2020, he was editor-in-chief of the journal Nuclear Fusion of the International Atomic Energy Agency (IAEA).
  • Ort: IPP Garching
  • Raum: Arnulf-Schlüter Lecture Hall in Building D2 and Zoom
  • Gastgeber: IPP
  • Kontakt: karl.krieger@ipp.mpg.de

Fusion start-ups - A broad range of alternatives

Institutskolloquium

The Spherical Tokamak Path to Fusion – New Challenges

Institutskolloquium
  • Datum: 12.01.2024
  • Uhrzeit: 10:30 - 12:00
  • Vortragender: Prof. Dr. Mikhail Gryaznevich
  • Mikhail Gryaznevich, M.Sc., Ph.D., Fellow of the Institute of Physics, Chartered Physicist. Born 1954 in Leningrad, received Honours Diploma in Plasma Physics at the Leningrad University in 1977 and PhD in Plasma Physics and Nuclear Fusion in 1988 at Ioffe Institute. Since 1990, he has been working at the Culham Laboratory, UK, United Kingdom Atomic Energy Authority on START, MAST and JET tokamaks, leading experimental programmes, preparing and performing experiments, designing, constructing and operating tokamak systems and diagnostics, supervising students, scientific and engineering staff. Supervised and participated in design, assembly and commissioning of START and MAST tokamaks and their systems. Performed experiments on 21 tokamaks and stellarators, including JET, MAST, START, ST25, ST25HTS, ST40 (UK), AUG (Germany), DIII-D, NSTX, HIDRA (USA), JT-60U, TST-2, (Japan), VEST (Korea), T-10, TUMAN-3 (Russia), COMPASS, GOLEM (Czech Rep), ETE, TCABR (Brazil), STOR-2M (Canada), TJ-2 (Spain), supervising and participating in experiments. Worked for IAEA Co-ordinated Research Projects, chairing the Scientific Committee on Small Fusion Devices, co-ordinating international activities in this area, organising IAEA International Joint experiments. Since 2009 he is the Chief Scientist and Executive Director at Tokamak Energy Ltd, working on ST path to Fusion Power and the use of the high temperature superconductors (HTS) in Fusion magnets. He was playing a leading role in construction and operations of a compact high-field spherical tokamak ST40 and in conceptual design of the ST-based Fusion Pilot Plant.
  • Ort: IPP Garching und Greifswald
  • Raum: Günter-Grieger Lecture Hall (Greifswald) and Zoom
  • Gastgeber: IPP
  • Kontakt: dmitry.moseev@ipp.mpg.de
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