University of Helsinki
Our first colloquium of the Spring 2020 s
eason will be the inaugural lecture of a new full professor in our department, Flyura Djurabekova.
Flyura is Professor in Materials in Extreme Environments here at the University of Helsinki. In her research she works on computational modelling of materials, with a focus on understanding materials under the extreme environments of particle accelerators.
In her colloquium, entitled Materials in extreme environments of particle accelerators, Flyura will tell us about how multiscale modelling can be used to understand the complex problem of vacuum arcing.
Here is her abstract:
Materials help to bring our dreams to life. Over the long history of the human kind, we learned to design and modify different materials to fit our needs. However, the courage of modern people to challenge the deep secrets of the Universe demands yet new knowledge of how to make the materials collaborate in conditions that are far beyond the standard ones. For instance, design and construction of powerful particle colliders to peek into the heart of the Universe require high engineering and construction skill. However, the lack of fundamental knowledge of key physical processes developing within the accelerating structures can hinder heavily the well-planned efforts.
In my presentation, I will describe our multiscale modelling of processes that are leading to and developing during vacuum arcing, a serious problem disturbing the operation of accelerating structures by strongly reducing its efficiency. On the other hand, vacuum arcing is not only a problem of particle accelerators; it is commonly seen in many places where high electric or electromagnetic fields are in touch with metals. By developing novel computational tools, we have been able to address many of the complex and multiphysics processes underlining the vacuum arcing.
After the 30 minute talk, there will be a cocktail reception. Welcome!