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Grid Alignment Test Tool
Model 07-644
Increased patient radiation dose and reduced image contrast can result from lateral decentering or tilting of a focused grid used in a Bucky apparatus. The Grid Alignment Test Tool is used to check whether a focused grid is aligned properly with the central ray and the center of the film cassette. It consists of a set of three plastic-covered, 0.062 inch thick lead plates: one 9.125 x 3.625 inch test plate, and two 3.56 x 2.375 inch blocker plates. The large test plate contains five 0.375 inch test holes and five 0.062 inch orientation holes.
It's easy to use. The test tool is centered on the x-ray table and fixed in position perpendicular to the grid lines. Five exposures are made, with the x-ray beam sequentially centered on each of five holes, and the optical densities of the hole
images are compared. A properly centered and leveled grid will result in equal density changes in the hole images on either side of the central hole. Unequal density changes indicate the need for corrective action.
Specifications
Weight 1.5 lb (0.68 kg)
Available model(s)
07-644 Grid Alignment Test Tool, including three lead plates
Supertech ®
President: David B. McNitt
V.P. of Marketing: Judy McNitt-Mell
Asst. to the President: Joy E. NystrandAddress:
P.O. Box 186
Elkhart, IN 46515 USA
Sales: 800-654-1054
Phone: 574-264-4310
Fax: 574-264-9551
Email: sales@supertechx-ray.com
Support: support@supertechx-ray.com
