NASA's primary interest is for iodine thrusters of less than 1 KW. It is also interested in powers over 10 KW. Nanosats are the biggest market with iodine supply between 1 and 10 kg and power at about 200 watts. A 12U Cubesat sponsored by NASA Glenn Research Center will employ an iodine ion thruster. It has a crucial need for reliable cathodes, both for discharge and neutralization. NASA Glenn and the Marshall Space Flight Center are co-sponsoring the iSat (iodine satellite) project. It, too, needs reliable cathodes. 2,000 to 2,750 small satellites are planned for this project.
Busek Co. is the main non-NASA producer of iodine thrusters. We have been in communication with it to supply cathodes if this project is successful. CubeSats are the largest non-NASA market. They are the mainstay of university and private space science projects.