The bomb is often listed as the TX-14 (for "experimental") or EC-14 (for "Emergency Capability").

It has also been referred to as the "Alarm Clock" device though it has nothing to do with the design by the same name proposed earlier by Edward Teller and known as the Sloika in the Soviet Union.

The fusion fuel used by the bomb was 95% enriched Lithium isotope 6 lithium deuteride, which at the time was a scarce resource, this scarcity being chiefly responsible for its limited deployment.

[1] The version tested at Castle Union used a RACER IV primary.

5 Mt of its total yield came from fission, making it a very "dirty" weapon.