This is a $747,651 SBIR Phase II contract awarded by NASA to Ultra Safe Nuclear Corp (Usnc) to develop passive reactor criticality control technology for nuclear thermal propulsion (NTP) systems. The goal is to simplify the control of NTP systems and increase their performance during operation, by employing advanced burnable neutron poisons, tuning the hydrogen density, and enhancing the fuel temperature reactivity feedback mechanism. The contract will fund the development of an NTP transient code, passive criticality control technology, a new NTP burnable neutron poison alloy, and NTP system designs showcasing the passive criticality control approach. This work is intended to help enable human exploration to Mars and other destinations using NTP systems. The contract is set aside for small businesses.
Generated 4/1/25, 6:52 PM