نتایج جستجو برای: natural radiation radiological health
تعداد نتایج: 1686811 فیلتر نتایج به سال:
We run the risk that terrorists will decide to detonate an explosive device laced with radioactive materials (a radiological dispersal device, or RDD). If such an attack occurs, it is unlikely that the affected population or emergency responders would be exposed to high levels of external radiation, although airborne radionuclides may present a health risk under some circumstances. However, the...
In some areas of Estonia, groundwater contains a significant number of natural radionuclides, especially radium isotopes, which may cause radiation protection concern depending on the geological structure of the aquifer. Indeed, the parametric value of 0.1 mSv y⁻¹ for the total indicative dose established by European Directive 98/83/EC, adopted as a limit value in Estonian national legislation,...
It is with great sadness that we share that Jean St. Germain, our colleague, friend, and integral member of the Medical Physics Department at Memorial Sloan Kettering Cancer Center (MSKCC) for over 50 yr, passed away on December 7, 2017. She died peacefully and was with her brother, Amos, at the time. Following completion of graduate study at Rutgers University and a fellowship at Brookhaven Na...
AIMS Interventional cardiologists who work in cardiac catheterisation laboratories are exposed to low doses of ionising radiation that could pose a health hazard. DNA damage is considered to be the main initiating event by which radiation damage to cells results in development of cancer. METHODS AND RESULTS We report on four interventional cardiologists, all with brain malignancies in the lef...
Abstract Ingestion of foods and drinking water is considered the leading cause human exposure to radioactive elements that guide internal radiation doses. The concentrations distributions natural radionuclides 238 U, 232 Th, 40 K in samples yellow maize directly consumed KwaZulu-Natal province South Africa were determined estimate possible radiological hazards health. Representative collected f...
Analysis of dose measurement other than the radiation protection during the radiographic examination
OBJECTIVES The study measured the dose on body regions that were not shielded to protect from radiation exposure during the general procedure, with the goal of providing basic radiation dose data for radiological technologists who perform the radiographic examination. MATERIALS AND METHODS Shooting parts with the phantom were similar to human tissues using general shooting equipment in the ge...
OBJECTIVES To evaluate the radiation dose of the main body CT examinations performed routinely in four regional diagnostic centres, the specific contribution of radiologists and technologists in determining CT dose levels, and the role of radiological staff training in reducing radiation doses. METHODS We retrospectively evaluated the radiation dose in terms of dose-length product (DLP) value...
The EC-funded project FASSET (Framework for ASSessment of Environmental impacT), which completed in 2003/2004, has developed an assessment framework for evaluating the environmental impact of ionising radiation on biota in natural ecosystems. The framework provides practical and scientific support to the international development of recommendations for radiological protection of the environment...
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