Subspace phase inverter
A subspace phase inverter was an instrument used by Starfleet in the mid-24th century, known to emit Eichner radiation.

In 2365, when attempting to trace the source of Eichner radiation causing uncontrolled growth of a sample of plasma plague on board the , Data suggested that a subspace phase inverter might be the cause, but Geordi La Forge dismissed this idea, as the Enterprise was not carrying that specific piece of technology. ()

See also 
 Phase inverter

de:Subraumphaseninverter
phase inverter
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