Trainee computational and experimental studies of Plasma Discharge Devices Advanced Bea

About PSI

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, employing 2300 people.

The Electron Beam Instrumentation Group develops instruments that measure the properties of electron beams and engages in advanced accelerator research. We are 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 Trainee for computational and experimental studies of Plasma Discharge Devices for Advanced Beam Manipulation.

Internship – 3 months. Reference number 8123‑27613.

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 depending on your background and interests:

• Multiphysics simulations, including CFD studies to optimize neutral gas distribution within plasma discharge capillaries, acoustic analyses aimed at greater control over the transverse gas density profile, and potentially simulations of plasma arc formation.
• 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, you may also contribute to the development of the plasma discharge experimental apparatus and/or participate in experimental measurement campaigns, depending on project progress and your interest.

• Student in physics, engineering, or a related field, at least in the final year of undergraduate study (minimum 4 semesters).
• Experience with CAD and CFD software for the multiphysics direction.
• Proficiency in Python and familiarity with GPU‑accelerated numerical simulations for the PIC direction.
• General aptitude for computational physics and data analysis is essential.
• Has not yet completed Master’s thesis.

You will work closely with experienced accelerator scientists and plasma physics researchers. Collaboration and ability to work effectively with international partners in a multicultural setting are essential.

Contract limited to 3 months.

For further information, contact Dr. Andrea Frazzitta, phone , email andrea.frazzitta, or Dr. Gerard Lawler, , email gerard.lawler. Please submit your application online for the position as a Trainee (Index‑‑27613).

Paul Scherrer Institute, Human Resources Management, Lara Essig, 5232 Villigen PSI, Switzerland