Nuclear battery
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United States of America Patent
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Feb 24, 1998
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N/A
app pub date -
Nov 8, 1993
filing date -
Nov 8, 1993
priority date (Note) -
Expired
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Abstract
A nuclear battery for supplying low level electrical energy for a relatively long period of time. The battery includes a low-energy beta emitter and phosphor dispersed sufficient proximate the beta emitter to capture the low energy betas before decay. A photovoltaic receptor is configured to have a peaked response near the wavelength of the photons emitted by the phosphor. In a preferred embodiment, the photovoltaic, phosphor and beta source are formed into flexible layers which are rolled into a cylinder in order to maximize the capture of photons emitted by the beta-excited phosphor.
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