Trainee

Experimental AC losses assessment in superconducting magnets for proton therapy

Your tasks

Proton therapy is a very promising radiation treatment capable to irradiate tumors with millimeter precision and therefore to spare the neighboring healthy tissues. PSI has a long history for the proton‐therapy, started in the 80’s and the next step would be the use of superconducting magnets to build a new‐generation of gantries or cyclotrons for proton therapy.

This project focuses on the use of High Temperature Superconductors (HTS), which would allow to work in the range of temperature (20‐30 K). At the same time, the fast energy change required by the patient treatment can be achieved by fast magnetic field ramping inducing AC losses inside the superconductor. To avoid the phenomenon of quench (transition of the superconductor from the superconducting state to the normal conducting state), the handling of this generated heat is fundamental. This requires a particular attention in the superconducting material properties and the choice of mechanical and cryogenic components. Sub‐scale solenoids will be built and tested at the PSI cryogenic test stand from spring 2023. The main goal is to test different conductors as possible candidates for such application.

The objectives of this internship is to contribute to the adaptation of the magnet support to the cryogenic facility and the test of the sub‐scale magnet. The student will be part of the process of design and manufacture of the tests setups up to the performance of the tests themselves, which are the AC losses assessment and the quench detection. The experimental activities will be followed by the development of post‐processing routines of the data and analysis.

Your profile

  • You are a student in engineering or physics, and you are at least at your first year of the Master degree
  • You have experience in matlab and data analysis
  • You have an interest in practical laboratory work and instrumentation
  • You have not yet completed your Master’s thesis

We offer

Our institution is based on an interdisciplinary, innovative and dynamic collaboration.

The employment contract will be limited to 3 months (can be extended up to 4 months).

For further information, please contact Dr. Rebecca Riccioli, phone +41 56 310 47 08 or Dr. Michal Duda, phone +41 56 310 42 95.
Please submit your application online for the position as a Trainee (index no. 8433‐T1).

Paul Scherrer Institut, Human Resources Management, Patrizia Meister, 5232 Villigen PSI, Switzerland