The Paul Scherrer Institute PSI is the largest research institute for natural and engineering sciences within Switzerland. We perform cutting-edge research in the fields of future technologies, energy and climate, health innovation and fundamentals of nature. By performing fundamental and applied research, we work on sustainable solutions for major challenges facing society, science and economy. PSI is committed to the training of future generations. Therefore, about one quarter of our staff are post-docs, post-graduates or apprentices. Altogether, PSI employs 2300 people.
The Electron Beam Instrumentation Group develops instruments that measure the properties of electron beams and engages in advanced accelerator research. Recently, we started developing and applying multiphysics and particle-in-cell (PIC) simulation tools to optimize the design and performance of plasma-based particle acceleration and beam manipulation systems. In this context, we are looking for a
Your tasks
You will contribute to the development and optimization of plasma-based beam manipulation devices, with a focus on Active Plasma Lenses (APLs). The work will be primarily computational in nature, with two main simulation directions available depending on your background and interests.
The first direction involves multiphysics simulations, including CFD studies to optimize neutral gas distribution within plasma discharge capillaries, acoustic analyses aimed at achieving greater control over the transverse gas density profile, and potentially simulations of plasma arc formation.
The second direction involves the development of a PIC-based (Particle In Cell) simulation framework — using existing codes such as FBPIC, Smilei, or WarpX — to study and minimize beam-plasma wakefield effects during beam propagation through APL devices, including systematic parameter scans to identify optimal operating conditions for beam quality preservation.
Beyond simulations, depending on the progress of the project and your interest, you will also have the opportunity to contribute to the development of the plasma discharge experimental apparatus and/or participate in experimental measurement campaigns.
This internship will provide valuable experience working within a research laboratory environment. For highly motivated students, it offers the potential to develop into a Master's thesis project, allowing for a more comprehensive investigation of plasma discharge systems and beam-plasma interaction physics.
Your profile
- You are a student in physics, engineering, or a related field, and you are at least in your ultimate year of undergraduate study (minimum 4 semesters)
- You have experience with CAD and CFD software (for the multiphysics direction)
- You have proficiency in Python and familiarity with GPU-accelerated numerical simulations (for the PIC direction)
- A general aptitude for computational physics and data analysis is essential
- You have not yet completed your Master’s thesis
You will work closely with experienced accelerator scientists and plasma physics researchers. In our collaborative and dynamic environment, the ability to work effectively with international partners is essential. As an open-minded and adaptable individual, you thrive in a multicultural setting, fostering strong relationships with colleagues and partners from diverse backgrounds. We are committed to creating an inclusive workplace, and we welcome new perspectives.
We offer
Our institution is based on an interdisciplinary, innovative and dynamic collaboration.
The contract will be limited to 3 months.
For further information, please contact Dr Andrea Frazzitta, phone +41 56 310 48 72 or andrea.frazzitta@psi.ch or Dr Gerard Lawler, +41 56 310 47 52, email gerard.lawler@psi.ch.
Please submit your application online for the position as a Trainee (Index-Nr. 8123-27613).
Paul Scherrer Institute, Human Resources Management, Lara Essig, 5232 Villigen PSI, Switzerland