4D Integrated Treatment Console (4DITC) TrueBeam Linear Accelerator || Varian Medical Systems, Palo Alto, CA. || The 4DITC is designed to interface to the Varian Clinac Treatment Control System for the purpose of providing verification of treatment parameters, imaging and providing a record of treatment.. The True Beam is a medical linear accelerator which delivers X-ray and electron radiation for sterotactic radiosurgery and therapeutic radiation.