Dual Energy X-Ray Densitometry Apparatus and Method Using Single X-Ray Pulse
Patent application, filed 13 Oct 1999
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A dual-energy x-ray system is provided which is useful in densitometry and other applications. A dual energy x-ray source, formed field emission x-ray tube driven by a Marx generator, produces a single x-ray pulse of a very short duration e.g., 10 to 200 nanoseconds. The pulse provides x-ray energy of a first, high value early in the pulse and x-ray energy of a second, lower value later in the pulse so as to provide a dual energy level x-ray distribution comprising hard and soft x-rays. A detector system having dual x-ray energy discrimination properties, formed by soft and hard x-ray detectors and an inter-detector, receives the x-ray pulse and discriminates between the dual x-ray energy levels of the pulse.
- Medicine and Medical Research
- Nuclear Physics and Elementary Particle Physics