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A set of test objects designed to be used quickly and easily on an annual / commissioning basis to provide an ongoing check of imaging performance, particularly those aspects which are most liable to deterioration. An ongoing record of these numbers will reveal any trend towards deterioration in imaging performance. The kit consists of: ? TO.10 threshold contrast test object* ? TO.N3 contrast test object ? TO.GS2 greyscale test object ? TO.E1 edge test object ? TO.M1 geometry test object ? TO.MS1 mesh test object ? TO.MS3 mesh test object ? TO.MS4 mesh test object ? 1.0 mm Copper filter x 1 ? 0.5 mm Copper filter x 2 ? Resolution test object (0.5 to 5.0 LP/mm)* ? Video cable and adaptors

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Leeds Test Objects Ltd?

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