title: A simple electron cone interlock system for the clinac-18.
abstract: A simple electron cone-collimator interlock system has been developed for the Clinac-18. Each cone is assigned a special slot in the storage cabinet and, upon being taken for treatment setup, sends out a binary coded decimal (BCD) signal to the control console. The voltage from the collimator setting must match the BCD signal or a comparator logic will drive the fault matrix to prevent the accelerator from energizing.
mesh_terms: D004583:Electrons; D010315:Particle Accelerators / Q000295:instrumentation*; D011878:Radiotherapy / Q000295:instrumentation*; D014965:X-Rays