Study the Quality Assurance of Conventional X-Ray Machine using Non-Invasive KV Meter
Journal Title: UNKNOWN - Year 2015, Vol 4, Issue 3
Abstract
This study was carried out to obtain optimum operation conditions for X-ray machines. We investigated some factors affecting on quality assurance of conventional Siemen X-ray machine, in one of Mansoura Hospitals such as reproducibility of dose output, time and applied high voltage, Kilo-voltage accuracy, mA accuracy, time accuracy, and linearity. We measured these factors using Non-Invasive kilo voltage meter, The NERO Max 8000 connected with suitable ionization chambers that located at 100 cm source to image detector. Reproducibility of dose output was ranged from 0.1 to 0.7 %, of time was ranged from 0.2 to 3.1 and of high voltage was ranged from 0.1% to 0.7% which is lower than the tolerance limit of the American Association of Physicist in Medicine reference values. Kilo-voltage accuracy percentage was ranged from 1.5 to 3.5 % and time accuracy percentage was ranged from 0.5 to 4.1 % respectively. This study concluded that as the kilo-voltage increases by one, the dose increases by 28%.
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