X-RAY WorX GmbH has patented the design of open microfocus rod anode tubes with internal cooling. The patented design is used in the product families RAC and RAC Superfocus. For details refer to the German patent DE102010054816B3 issued on 8. March 2012.
Due to the patented design X-RAY WorX is the exclusive manufacturer for the types of rod anode tubes mentioned above.