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Sunday, May 1, 2005
A UCLA team, headed by Brian Naranjo, has observed the nuclear fusion of deuteriumnuclei in a tabletop device. The device uses a lithium tantalate (LiTaO3) pyroelectric crystal to ionize deuterium atoms and accelerate the ions towards a stationary erbium deuteride (ErD) target. Fusion of two deuterium nuclei results in the emission of helium nuclei (alpha particles), neutrons and gamma rays. The team anticipates applications of the device as a tabletop neutron generator, or in "microthrusters" for space propulsion. It is possible that there may be applications related to nuclear weapons, although this possibility is not discussed in the research paper.
This development is not related to earlier claims of tabletop fusion or "cold fusion" having been observed during sonoluminescence. In fact, the leader of the team behind this development was one of the main critics of earlier low-temperature fusion claims.
This device is not the first reliable tabletop fusion device; the Farnsworth-Hirsch fusor, developed in the early 1960s in the laboratory of Philo T. Farnsworth who was instrumental in developing television, is sold commercially as a neutron source. Research by Dr. Todd Rider of MIT suggests that the kind of non-equilibrium fusion produced in these sources will never be usable as an energy source (see his PhD thesis).
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This page is archived, and is no longer publicly editable.
Articles presented on Wikinews reflect the specific time at which they were written and published, and do not attempt to encompass events or knowledge which occur or become known after their publication.
Please note that due to our archival policy, we will not alter or update the content of articles that are archived, but will only accept requests to make grammatical and formatting corrections.
Note that some listed sources or external links may no longer be available online due to age.
The text of this article has been released into the public domain. In the event that this is not legally possible, this article may be used for any purpose, without any condition, unless such conditions are required by law. This applies worldwide. Copyright terms on images, however, may vary, so please check individual image pages prior to duplication.
