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Pyroelectric fusion is a technique for achieving nuclear fusion by using an electric field generated by pyroelectric crystals to accelerate deuterium ions (tritium might also be used someday) into a metal hydride target also containing detuerium (or tritium) with sufficient kinetic energy to cause these ions to fuse together. The novel idea with this approach to fusion is in its application of the pyroelectric effect to generate a strong electric field (gigavolts per meter), by heating the crystal from −30°C to +45°C in a few minutes. The strong field is used to accelerate deuterium ions from a needle-thin tungsten probe tip mounted on a copper disk into a solid target containing deuterium. Some of the deuterium atoms fuse, producing helium and neutrons. Like muon-catalyzed fusion, the process does not appear to be able to generate net power, but may have other uses. Variable Voltage Powersupply Ideal for the Workbench.

A UCLA team, headed by Brian Naranjo, has observed the nuclear fusion of deuterium nuclei in a laboratory bench top device in April 2005. The device uses a lithium tantalate (LiTaO3) pyroelectric crystal to ionize deuterium atoms and accelerate the ions towards a stationary erbium dideuteride (ErD2) target. Around 1000 fusion reactions per second took place, each resulting in the production of an 820 keV helium-3 nucleus and a 2. 45 MeV neutron. The team anticipated applications of the device as a neutron generator, or in microthrusters for space propulsion. Quad Bench Power Supply.