Quality control of X-rays with collimator and the beam alignment test tool
Keywords:collimator similarity, focus film distance, gap efficiency, quality control, X-rays
This test aims to determine and analyze the accuracy of the collimator beam with an X-ray beam, to perform two test methods, namely the suitability of the alignment test tool with an X-ray beam and the suitability of the x-ray beam area using the beam alignment test tool. Collimator tests such as the Illuminance Test, Shutter Efficiency and Collimator Similarity or the suitability of the collimator field area to the X-ray beam field area within a tolerance of ? 2% Focus Film Distance (FFD) which has been determined by the Minister of Health Decree No. 1250/SK/XII/2009. This was carried out using FFD at a distance of 100 cm and a variation of the exposure factor which was distinguished by the voltage ranging from 50, 60, 70, 80, and 90 kV. The collimator gap efficiency test still functions efficiently/effectively, which is shown in the film there is no radiation leakage/blackening effect on the film.
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