Apparatus and method for generating electrical current from the nuclear decay process of a radioactive material
US6949865B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | May 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21H1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for generating electrical power from the decay process of a radioactive material is disclosed, wherein a volume of radioactive material and a junction region are enclosed in a cell. The junction region is formed by appropriate construction of a number of p-type and n-type dopant sites. At least a portion of one of the junction regions is disposed within a porous region having an aspect ratio of greater than about 20:1, and disposed at an angle of greater than about 55° measured relative to the surface area in which it is formed. The dimensions and shapes of the macroporous regions and the improved junction region surface area available for collecting charged particles emitted during a radioactive decay series permit an improved current to be derived from the apparatus than would otherwise be expected given its external dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.