RT Journal Article T1 SEOR recommendations on the use of protons. A1 Lloret-Saez-Bravo, M A1 Giralt-L de Sagredo, J A1 Contreras-Martinez, J A1 Ferrer-Albiach, C K1 Proton Therapy K1 X-Rays K1 Intention K1 Radiation Oncology K1 Neoplasms AB Radiotherapy is one of the fundamental strategies in the treatment of cancer that is used in more than 60% of patients with this disease. It can be used with curative intention or to alleviate symptoms, always trying to minimize toxicityin healthy tissues. In “classical” radiotherapy, essentially photons are used.Proton therapy (PTR) is a special modality of radiotherapy that uses heavy particles (protons) instead of X-rays. These particles stand out above all due to their characteristic dose distribution in the tissues they pass through, with the maximum dose being deposited before their arrest, what is called Bragg’s Peak PB Springer YR 2019 FD 2019-08-12 LK http://hdl.handle.net/10668/14389 UL http://hdl.handle.net/10668/14389 LA en NO Lloret-Saez-Bravo M, Giralt-L de Sagredo J, Contreras-Martinez J, Ferrer-Albiach C. SEOR recommendations on the use of protons. Clin Transl Oncol. 2020 Jun;22(6):795-797 DS RISalud RD Apr 19, 2025