Radiation imaging calibration

Details Radiation imaging calibration Radiation imaging calibration

1988-07-13

1990-12-25

Howell, Janice A.

X-ray or gamma ray systems or devices

Accessory

Testing or calibration

2502521, G01D 1800

Patent

active

049809040

ABSTRACT:
An apparatus and method is disclosed for facilitating calibration of a dual energy digital radiography system having a focused multi-element detector assembly. The apparatus includes two sets of calibration elements, each set made of a different basis material. Each calibration element defines a segment of an annulus and is positionable between the system source and detector such that the center defined by the annulus is substantially coincident with the focal spot of the source. Within individual sets, the thicknesses of the respective member elements differ one from another in accordance with a binary progression. Each of the calibration elements is positioned and sized such that it intercepts and attenuates all radiation which ultimately falls upon the detector.

REFERENCES:
patent: 3937963 (1976-02-01), Hounsfield
patent: 3974386 (1976-08-01), Mistretta et al.
patent: 4029963 (1977-06-01), Alvarez et al.
patent: 4055771 (1977-10-01), Goodenough et al.
patent: 4126789 (1978-11-01), Vogl et al.
patent: 4225789 (1980-09-01), Albrecht
patent: 4319184 (1982-03-01), Kowalczyk
patent: 4352020 (1982-09-01), Horiba et al.
patent: 4367409 (1983-01-01), Klausz
patent: 4399550 (1983-08-01), Hauck et al.
patent: 4411012 (1983-10-01), Pfeiler et al.
patent: 4497061 (1985-01-01), Hounsfield
patent: 4510577 (1985-04-01), Tsujii et al.
patent: 4571491 (1986-02-01), Vinegar et al.
patent: 4626688 (1986-12-01), Barnes
patent: 4709382 (1987-11-01), Sones
Fenster, A., "Spilt Xenon Detector for Tomochemistry in Computed Tomography," Jour. of Computer Assisted Tomography, 2:243-252, Jul. 1978, Raven Press, New York.

Affiliated with

Also associated with

Rating

Radiation imaging calibration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radiation imaging calibration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiation imaging calibration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1169055