Radiation imaging system
US4126783A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | May 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/848
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A radiation imaging system employs a super-heated, super-conducting colloid detector subjected to an external magnetic field such that all the colloid grains are maintained in the metastable super-conducting state in the absence of radiation. Imbedded in the detector are intersecting helical sensing coils that divide the detector into volumetric resolution elements. The grains in each element that absorb x-ray or gamma ray photons emanating from an object make a transition to the normal conducting state thereby producing flux changes in the vicinities of the grains which induce signals in the coils defining the resolution element in which those grains are located. The number of signals from each element are accumulated separately and used to produce an image of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.