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X-Ray Grids

Superior construction of lead strips with smooth, enameled aluminum cover, sealed to protect against dirt and moisture. May also be ordered with carbon fiber composite covers.

For added protection of your valuable grids and convenience, grids can be installed in various forms of grid encasements: Flat Lexan® Encasements, grid caps, Lexan® encasements with cassette channels and grid cassettes.

Selection of High Precision Materials / Durability and Inspection

To obtain the most effective X-ray transmission and absorption, as well as grid density uniformity and precise geometric arrangement for strip focusing, our grids utilises the finest precision materials, such as aluminum strips with a purity of 99.99% and a thickness tolerance of ± 0.02mm, and lead strips with a purity of 99.85% and a thickness tolerance of ±.001mm.

Each grid strip is laminated and baked after the gluing procedure. This ensures absolute rigidity between the strips as well as heat and moisture resistance. It also completely prevents warping and cracking over time. Each grid is subjects to radiographic testing prior to shipment and only those grids which have passed the test for perfect strip alignment are delivered to our customers. The test film supplied with all our grids is your assurance of quality.

Specifications

Grid Composition Part Density Interspacer (Aluminium) X-Ray Absorbing Material (Lead)
40L 0.20 m/m 0.050 m/m
60L 0.12 m/m 0.050 m/m
70L 0.10 m/m 0.050 m/m
80L 0.08 m/m 0.050 m/m
Thickness of Line (CM) : Ratio 6:1 8:1 10:1 12:1 15:1
40L 1.6 mm 2.0 mm 2.4 mm 2.8 mm 3.2 mm
60L 1.02 mm 1.28 mm 1.5 mm 1.74 mm 2.1 mm
70L 1.04 mm 1.24 mm 1.44 mm 1.74 mm
80L 0.94 mm 1.04 mm 1.20 mm 1.44 mm

Three Types of X-Ray Grid Strip Positioning

Ratio Available in 5:1 to 15:1 Density

  • 60 lines/inch (23 lines/cm)
  • 72 lines/inch (28 lines/cm)
  • 85 lines/inch (34 lines/cm)
  • 103 lines/inch (40 lines/cm)
  • 130 lines/inch (51 lines/cm)
  • 150 lines/inch (60 lines/cm)

X-Ray Grids Focal Range

Standard focal ranges available: Short(26" -32"), Medium(34" -44), Long(40" -72", 48" -72", or 60" -72) and infinity (parallel). Special focal ranges may be accommodated per your specifications.

Focal Range Ratio Type
Inch Metric(cm)
28 - 48, 48 - 72 71 - 122, 122 - 183 5:1 Focused
48 - ∞ 122 - ∞ 5:1 Parallel
28 - 48, 48 - 72 71 - 122, 122 - 183 6:1 Focused
48 - ∞ 122 - ∞ 6:1 Parallel
26 - 32, 34 - 44, 48 - 72 66 - 81, 86 - 122, 122 - 183 8:1 Focused
36 - 40, 60 - 72 91 - 102, 152 - 183 10:1  Focused
36 - 40, 60 - 72 91 - 102, 152 - 183 12:1  Focused

The lower the ratio, the wider the range of usable focal lengths that can be used with the grid. For example, with an 8:1 ratio that has been made with a 38" focal length, it can be used with focal lengths between 34" and 44". When using a higher ratio, such as 12:1, the range would only be 36" to 40".

Parallel X-Ray Grids

Parallel grids are used for operational research and traumatology since exact centering is impossible in these cases. The scattered radiation absorbing strips are vertical and parallel to the grid surface. The strips, generally, run parallel to the long dimension of the grid. In order to get a vivid radiograph, focal distance of parallel grids must be 150 cm - infinity since the scattered radiation absorbing strips are not exactly parallel to the diverging radiation.

Remarks

General x-ray grid sizes are film sizes (inside grid). Overall dimensions are 2.54 cm (1 inch) larger than film sizes in each direction except the standard BUCKY GRID size 17 1/4" x 18 7/8" and 18 x 18".

Additional Information

Specifications

Size

18 x 24 cm, 24 x 30 cm, 35 x 43 cm

Ratio

6:1, 8:1, 10:1, 12:1, 15:1

Lines (Per cm/inch)

40cm (103"), 60cm (150"), 70cm (178"), 80cm (200")

Focal Range

66 to 81 cm, 86 to 112 cm, 102 to 183 cm, 152 to 183 cm, Parallel

Aspect

Landscape, Portrait

Type

Grid, Film

X-Ray Grids
https://imagingsol.us/product/x-ray-grids

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