Longer Coaxial-Heater Hollow Cathode is Completed

A longer version of the coaxial-heater hollow cathode with molybdenum keeper tube is completed. This latest cathode will be used as the internal cathode of our latest Hall effect thruster (UK90). This cathode employs LaB6 insert material with an inner diameter of 2mm, outer diameter of 4mm and length of 15mm.