Suppy of 50kv X-ray Replacement System

NPL plans to procure a 50kv X-ray Replacement System. Overview of the system required is as below: A two X-ray tube system using Industrial-type X-ray tubes which are suitable for continuous operation with an associated generator and controller (with a possible standalone water cooler for the X-ray tubes): Tube 1. 50kV Tungsten Target Tube, earthed anode, 20-degree angle, 1mm Beryllium window. Tube 2. 50kV Molybdenum Target Tube, earthed anode, 20-degree angle, 1mm Beryllium window. Generator / controller minimum requirement: 5-55kV with 0.01kV resolution, mA resolution 0.01mA, at least 3kW, low ripple (less than 20V/mA), ideally controllable via communication protocols in preference: GPIB, ethernet, serial, USB.