Spectrum
10 December 2009—This week at the International Electron Devices
Meeting (IEDM), in Baltimore, Md., Cornell University engineers
presented research that shows progress in powering cybernetic organisms
with a radioactive fuel source.
Electrical engineering associate professor Amit Lal and graduate
student Steven Tin presented a prototype microelectromechanical systems
(MEMS) transmitter—an RF-emitting device powered by a radioactive source
with a half-life of 12 years, meaning that it could operate
autonomously for decades. The researchers think the new RFID
transmitter, which produces a 5-milliwatt, 10-microsecond-long,
100-megahertz radio-frequency pulse, could lead to the widespread use of
radioisotope power sources.
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