The Particle Therapy Co-Operative Group (PTCOG), founded in 1985, is a non-profit worldwide organization of scientists and professionals interested in proton, light ion, and heavy charged particle therapy.

The mission of PTCOG is to promote science, technology, and practical clinical application of particle therapy, with the ultimate goal of improving treatment of cancer to the highest possible standards in radiation therapy.  

PTCOG encourages improved and continuing education and promotes global activities in the field of particle radiation therapy. It supports the organization of a dedicated international conference, including scientific meetings and educational sessions.

PTCOG is pleased to be able to endorse the Proton Therapy Academy and its role in providing high-quality clinical education to medical professionals in the proton therapy arena.