X-RAY TUBES MONOPOLAR HIGH DEFINITION 130kV double filament tube with power of 100W & 300W and focal spot size of 0.1 & 0.3 (EN 12543). MONOPOLAR From 100kV to 225kV single or double filament with power from 320W and focal spot size from 0.5 (EN 12543). BIPOLAR From 320kV to 450kV double filament with power from 600W and focal spot size from 0.3 (EN 12543).