Thales’s electron tubes (klystrons and tetrodes) provide RF energy for the particle accelerators used in radiotherapy applications. Thales’s klystrons have proven their reliability in hundreds of conventional oncology systems installed around the world. Thales’s tetrodes are used by the main manufacturers of advanced particle therapy systems using protons and ions to treat various types of radio-resistant cancers. Thales’s products enable leading-edge performance to medical OEMs.