![]() ![]() Radiation exposure, special radiation protection measures have to be considered Since the rooms where mobile x-rays are performed aren’t prepared for These effects and to ensure the best working conditions for the professionals,ĭiagnostic reference levels were developed to standardise the doses applied by Stage of a set of phenomena that cause biological changes of two types: theĪcute or chronic effect and the immediate or late manifestations. Physical interactions of radiation with matter constitute the first May produce scattered radiation, which is prejudicial for image quality andĬontributes to patient and professional/staff exposure (Lima 2009). The interaction of radiation with tissues The transition between these two phenomena being approximately at 80 kVp in the However, the best known are the photoelectric and Compton effects, Several effects result from interaction of the radiation with the ![]() They rely on the differences in the coefficients of attenuation of human The radiograms are acquired using ionising radiation and It is also a useful tool to evaluate devices for clinical support, suchĪs catheters, tracheal tubes and other life support systems (American College Radiation for diagnostic and treatment purposes has increased due to theĭevelopment of new equipment and easier access to radiologic examinations. Protective measures and stand behind the mobile equipment. Therefore, exposed workers should use a personal dosimeter, employ Is not exceeded (12 mSv/year), but for members of the public it is exceeded (2 For distances above 1m, the national dose limits for exposed workers Tangential projection, using a full body anthropomorphic phantom and an x-rayĭetector. ![]() Reproducing the technical conditions for the chest anteroposterior (AP)Įxamination in supine and semi-supine positions as well as for the abdomen The main goal of this research was to quantify scatter radiationĮxposure from mobile x-ray examinations. ![]()
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