Room-Temperature, Small-Scale Fusion at UCLA

gnuman99 writes "A UCLA collaboration (Seth Putterman, Brian Naranjo and Jim Gimzewski) appear to have developed a fusion device powered by a pyroelectric crystal, a type of crystal used in cell phones to filter signals. When heated, such a crystal produces a large electric charge on its surface. The UCLA researchers placed a lithium tantalate (LiTaO3) pyroelectric crystal so that one side touches a copper disc. A tiny tungsten probe is then placed at the center of the copper disc. When the crystal is subsequently heated, a very large large electric field is produced at the end of the tugsten tip, ~25 billion volts per meter. This field gradient is so high that it strips the electrons from nearby deuterium atoms. The ionized deuterium atoms then accelerated by this field towards a solid target of erbium deuteride (ErD2). They collide with it at such high energies that some fuse with the target. A measurement of almost 900 neutrons per second was observed. This is 400 times the background! Although the amount of energy produced in this initial experiment was miniscule (~1E-8 jules), this technology could be used for things like microthrusters. There are pictures and movies on the UCLA's physics site." Reader richmlpdx adds a link to coverage at MSNBC.

Comments

Takes a lot more energy than it produces

[nokiator]

Going briefly over the available documents on this, it appears that this technique consumes orders of magnitude more energy than it produces. This would preclude energy generation as one of the potential applications, which is usually regarded as the most promising potential application of cold fusion. Most of the other potential applications mentioned in the articles use this as a neutron generator, but there are other well known ways of achieving that...

Re:Potential Uses

[budgenator]

Then students would pursue projects with this in mind, instead of developing with military applications in mind. Highly reliable and easy-to-repair water pumps, improved farming tools constructable from local materials, simple and effective water filtration devices, etc.?

You say that like those aren't military applications, I think perhaps your out of touch with what modern military actualy does. Demonizing anything military is easy, and the people who do it the most are the people who don't realize that it's the military's infrastructure that make most humanitarian relief operations possible. Next time you think somebody needs 10,000 tons of relief supplies ask FedEx what the going rate is, and if they drop it off in a hostile fire zone.