نتایج جستجو برای: radiological protection
تعداد نتایج: 213057 فیلتر نتایج به سال:
Effective radiation shielding is imperative to safe operation of modern Medical Cyclotrons producing large activities of short-lived radioisotopes on a commercial basis. Like the containment shielding of Medical Linear Accelerators (1), the optimal shielding design of Medical Cyclotrons demands a careful balance between the radiological, economical and often the sociopolitical factors. One is r...
Introduction Due to the increasing use of angiography procedures and the higher risk of deterministic and stochastic effects for radiation workers of these sections than other radiological procedures, radiation safety is very important in angiography staff. So, this study aimed to obtain the effective dose of angiography staff and compare them with the standard dose limit and finally outline th...
during the past years, special emphasis was put on medical preparedness in the event of radiological or nuclear emergencies. novin medical radiation institute (nmri) encouraged and supported the national authorities to enhance their cooperation in improving medical response to radiation accident. nmri in cooperation with international atomic energy agency (iaea) and atomic energy organization o...
This paper provides a review of the 2007 recommendations of the International Commission on Radiological Protection (ICRP). These new recommendations take account of the latest biological and physical information and consolidate the additional guidance provided by ICRP since 1990. The changes to the scientific data are not substantial. ICRP has retained its fundamental hypothesis for the induct...
In order to establish a Radiation Protection Plan or a Radiation Emergency Plan, Brazilian facilities should take into account all procedures based on national and international guidelines and recommendations. This information can be found in several documents published by different organizations over the past decades: the International Commission on Radiological Protection (ICRP), Internationa...
The ENEA Radiation Protection Institute since many years has been playing a reference role in Italy in the radiological protection field for external exposures and for incorporated radionuclides dosimetry both in the industrial and medical activities. A series of laboratories and measurement facilities are in operation in connection with neutron, photon and electron metrology, with the developm...
Background Increasing the x-ray film to focus distance (FFD), has been recommended as a practical dose optimization tool for patients undergoing conventional radiological procedures. In the previous study, we demonstrated a 32% reduction in absorbed dose is achievable due to increasing the FFD from 100 to 130 cm during pediatric chest radiography. The aim of this study was to examine whether in...
1 Centre for Ecology and Hydrology, UK 2 Stirling University, UK 3 International Atomic Energy Agency 4 Saskatchewan Research Council, Canada 5 Norwegian Radiation Protection Authority, Norway 6 Oregon State University, USA 7 Australian Nuclear Science and Technology Organisation, Australia 8 Canadian Nuclear Safety Commission, Canada 9 Belgian Nuclear Research Centre 10 Chernobyl Centre for Nu...
human activities such as oil and gas production can enhance the natural level of naturally occurring radioactive materials (norm) in by-product and waste streams. iran has been among the top five oil producing countries since 2005. this high production rate emphasizes the importance of norm management to ensure the safety of humans and wildlife. petroleum storage and transport facilities are lo...
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