What critical safety feature was designed into the SNAP-10A reactor system before its operation ended after 43 minutes?
Answer
The system was designed for remote shutdown capability
Given that the SNAP-10A mission was a technology demonstration involving a complex, active fission process in space, incorporating safety mechanisms was paramount. The text specifies that the system included the capability for remote shutdown, which was demonstrated when the reactor was intentionally deactivated after operating for approximately 43 minutes. This ability to actively terminate the controlled chain reaction was recognized as a necessary safety feature for any subsequent vehicle planned to use reactor power. This contrasts with the RTG on Transit 4A, which could not be altered or shut down because its power was derived from passive, uncontrollable radioactive decay.
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