Eclipse™ is an integrated and comprehensive treatment planning system supporting radiation treatment modalities like photon, including FFF beams, proton and electron external beams treatment options, low dose rate brachytherapy and Cobalt. With an intuitive Windows-based interface, Eclipse is designed to increase productivity for clinicians using simplified data settings and easy drag and drop functionality. Using leading edge automated tools, Eclipse opens the door for clinicians to create, import and optimize plans across numerous multiple linear accelerators. In a Varian environment, Eclipse integrates the ARIA oncology information system making workflow smooth, integrated and seamless. As Varian takes radiation treatment to the next level, Eclipse is designed to advance along with it.