Description

The test object is intended to be used by radiographic staff to detect any deterioration in image quality of the television fluoroscopy system. If used appropriately at constant values of exposure, any such deterioration should be detected.

Specifications

The test object comprises four types of test on one individual circular plate
A line pair resolution test pattern from 0.5 to 5.0 cycles mm-1 in groups of 4½ cycles
A stepwedge of 10 steps which (if the television monitor is adjusted correctly) should display a uniform grey scale
A group of 18, 8mm diameter, low contrast details with nominal contrast from 0.0749% to 0.0016% contrast

Photos

Models

• FL-18 - Test Objet FL 18