Public tours

Proton therapy is a form of radiation therapy used to destroy cancerous tissue with charged particles, specifically protons. Protons are particularly well-suited for this purpose because they deliver their greatest effect deep inside the body, directly within the tumor. At the Proton Therapy Center of PSI, we treat more than 400 patients each year. During our tour, we will introduce you to the treatment rooms and explain PSI’s contributions to the development of proton therapy.

Learn how the PSI ensures the interim storage of radioactive waste from medicine, industry, and research (MIF) under controlled conditions.

The SwissFEL is one of only five X-ray laser facilities worldwide that can generate hard X-rays in laser quality and make them available for research. During our tour, we will learn about the operation and main research objectives of the X-ray laser and then take a guided walk to view the key components of the 700-meter-long facility.