Facultatea de Fizică
Universitatea "Al.I.Cuza" Iaşi
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| Titlu: Quality Control in Conventional Radiography |
| Autori: Ciobanu Celina1, Iacob Olga2 |
| Afiliere: 1Fac. de Fizică, Univ. Al. I. Cuza, Blvd. Carol I, 11A, 700506-Iassy, [email protected]
2 Institute of Public Health Iasi, 14, V. Babes Str. 700465, Iassy |
| Abstract: Conventional radiographic imaging systems have many elements, each of which is subject to variability or to change with time. To produce a single radiograph the kVp, mA, exposure time, beam filtration, focal spot size, grid (type, uniformity and alignement), intensifying screens, cassets, film, darkroom conditions, photographic processor and chemicals must provide the appropriate function or the final film may not be clinically acceptable. To ensure optimum image quality with minimum radiation exposure to the patient and staff it is essential to measure and control all of the appropriate variables in the radiographic imaging chain. In this purpose, in a few medical clinics from Iassy we have made a series of tests such as: the linearity of mA, the kVp accuracy, the exposure reproducibility, the HVL (half value layer), the total filtraton and the exposure time accuracy and reproducibility. |
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