Jump to navigation. External exposure is radiation that comes from somewhere outside the body and interacts with us. The source of radiation can be a piece of equipment that produces the radiation, like an x-ray machine, or it can be from radioactive materials in a container.
The amount of external radiation exposure received is related to the distance from the source, the energy of the emitted radiation, the total amount of radioactive material present or the machine setting, and the time of exposure.
Radiation workers can control and limit their exposure to penetrating radiation by taking advantage of time , distance, and shielding. JavaScript appears to be disabled on this computer. Please click here to see any active alerts. Radiation is part of our life. Background radiation Background radiation Radiation that is always in the environment. The majority of background radiation occurs naturally and a small fraction comes from man-made elements.
Fortunately, there are very few situations where an average person is exposed to uncontrolled sources of radiation above background. Nevertheless, it is wise to be prepared and know what to do if such a situation arises.
One of the best ways to be prepared is to understand the radiation protection principles of time, distance and shielding. Find articles by Jae Hun Kim. Author information Article notes Copyright and License information Disclaimer. Corresponding author. Correspondence to: Jae Hun Kim. Received Jun 7; Accepted Jun This article has been cited by other articles in PMC. Time Radiation exposure can be accumulated over the time of exposure.
Distance A greater distance from the radiation source can reduce radiation exposure. Shielding There are many shielding devices such as caps, lead glasses, thyroid protectors, aprons, radiation reducing gloves, and so on, for radiation safety during C-arm fluoroscopy-guided interventions. References 1. The radiation safety education and the pain physicians' efforts to reduce radiation exposure. Radiation safety and education in the applicants of the final test for the expert of pain medicine.
Radiation exposure of the hand and chest during C-arm fluoroscopy-guided procedures. The radiation exposure of radiographer related to the location in C-arm fluoroscopy-guided pain interventions.
How effective are radiation reducing gloves in C-arm fluoroscopy-guided pain interventions? The survey about the degree of damage of radiation-protective shields in operation room. Support Center Support Center. External link.
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