نتایج جستجو برای: nuclear radiation detection
تعداد نتایج: 1014882 فیلتر نتایج به سال:
The very low frequency electromagnetic (VLFEM) technique is well established for rapid geological mapping and detection of buried conductive targets. The technique makes use of signal radiation from military navigation radio transmitters. There are about 42 global ground military communication transmitters operating in VLF frequency in the range of 15–30 kHz. These stations, located around the ...
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...
three nearly simultaneous events around the end of the 19th century, i.e., the discovery of x‐rays by roentgen in 1895, natural radioactivity by antoine‐henri becquerel in 1896 and isolation of radium by the curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. at the close of the 20th century, fundamental discoveries in biology at mo...
Since the atomic bombings of Hiroshima and Nagasaki in 1945, and the subsequent reports of raised cancer risks among survivors in the two cities, there has been interest and concern about risks arising from this and other nuclear incidents, such as the 1986 Chernobyl accident. This article reviews methodological aspects associated with the detection of cancer risks in groups exposed to ionising...
Large-scale radiation accidents are few in number, but those that have occurred have subsequently led to strict regulation in most countries. Here, different accident scenarios involving exposure to radiation have been reviewed. A triage of injured persons has been summarized and guidance on management has been provided in accordance with the early symptoms. Types of casualty to be expected in ...
Three nearly simultaneous events around the end of the 19th century, i.e., the discovery of X‐rays by Roentgen in 1895, natural radioactivity by Antoine‐Henri Becquerel in 1896 and isolation of Radium by the Curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. At the close of the 20th century, fundamental discoveries in biology at molecul...
Following the Fukushima nuclear power plant disaster, assessment of internal radiation exposure was indispensable to predict radiation-related health threats to residents of neighboring areas. Although many evaluations of internal radiation in residents living north and west of the crippled Fukushima nuclear power plant are available, there is little information on residents living in areas sou...
this study aimed to evaluate the radiation safety condition and the level of radiation-awareness amongst staff and patients in 18 hospitals of shahid beheshti university of medical sciences, tehran, iran. this descriptive, cross–sectional study was administered to patients and personnel, also making a review on the radiation-safety status in the hospitals. in evaluating the level of awareness, ...
T detection of illicit nuclear materials is a major tool in preventing and deterring nuclear terrorism. The detection task is extremely difficult because of physical limitations of nuclear radiation detectors, shielding by intervening cargo materials, and the presence of background noise. We aim at enhancing the capabilities of detectors with algorithmic methods specifically tailored for nuclea...
Electronic equipment in nuclear power plants and warfare is damaged by transient effects that cause high-energy pulsed radiation. There a concern this type of damage can even enormous economic losses human casualties paralyzing control systems. To solve problem, study proposes complementary metal-oxide semiconductor (CMOS) logic-based, switching detection circuit detect radiations at fast rate....
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