Autonomous Cryogenic Control Achieving Six-Order-of-Magnitude MTTR Reduction: Experimental Validation up to 10,000,000 µK

This work presents the experimental validation of a modular cryogenic control architecture designed to eliminate downtime through autonomous, predictive recovery mechanisms implemented at the control-logic level. The proposed HTS Altea-Garay UCC v5.4 system introduces a deterministic supervisory layer capable of maintaining bounded behavior under extreme thermal disturbances. Validation demonstrates recovery latencies on the order of 100 microseconds, representing a six-order-of-magnitude reduction in MTTR.