Rotational-translational fourier imaging system requiring only one grid pair
US7135684B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The sky contains many active sources that emit X-rays, gamma rays, and neutrons. Unfortunately hard X-rays, gamma rays, and neutrons cannot be imaged by conventional optics. This obstacle led to the development of Fourier imaging systems. In early approaches, multiple grid pairs were necessary in order to create rudimentary Fourier imaging systems. At least one set of grid pairs was required to provide multiple real components of a Fourier derived image, and another set was required to provide multiple imaginary components of the image. It has long been recognized that the expense associated with the physical production of the numerous grid pairs required for Fourier imaging was a drawback. Herein one grid pair (two grids), with accompanying rotation and translation, can be used if one grid has one more slit than the other grid, and if the detector is modified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.