The iSAT propulsion system consists of the 200W Hall thruster, a tank to store the solid iodine, a Power Processing Unit (PPU), and the necessary valves and tubing to route the iodine vapor.
Functionally, propulsion system performance begins with the tank. The tank contains solid iodine, which is then heated via tank heaters to a temperature at which solid iodine sublimates to iodine vapor.
The vapor is then routed through tubing and valves to control mass flow to the thruster and cathode assembly. The thruster then ionizes the vapor and accelerates it via magnetic and electrostatic fields, resulting in thrust.