Both plasma and engineering diagnostics fall under the Diagnostics area. Assistance with calibrating and testing new plasma and nuclear diagnostics is available at the INFUSE laboratories. Help with active cooling and radiation protection is available. The labs can assist with advanced manufacturing to reduce cost and speed the deployment of new diagnostics. A variety of plasma test stands are available for testing and calibration. The laboratories can assist with materials compatibility, remote operation, EMI shielding, instrumentation, rad-hard electronics and interfacing.

Many of the diagnostics developed at the participating laboratories over the last fifty years can be made available to private companies and adapted for use on their own machines through collaboration with the INFUSE labs.