Multi energy system for x-ray imaging applications
US5490196A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In an all electronic multi energy system at least two levels of x-ray energy are produced sequentially and rapidly at independently controllable and different power or flux levels. In the system there are a triode x-ray tube which selects the operating current of the system and a series connected temperature limited diode or triode which controls the voltage across the first x-ray tube. This system provides improved performance in x-ray imaging applications at low cost, for example, in baggage inspection or measurements of bone densities and medical fluoroscopy. The objective of the system is to produce a maximum amount of useful information with a minimum amount of exposure for the patient or object to be illuminated by x-ray flux. With human patients this is desirable for health safety reasons; for baggage inspection, to reduce exposure to photographic films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.