Encodage utilisé (INPUT) : UTF-8 Forme recherchée : source _________________________________________________________________________________________________ * Ligne n°63 : Radioactive sources are commonly used in industrial processes to * Ligne n°79 : In the United States, millions of radioactive sources are in use by * Ligne n°82 : one-millionth of a curie, which is typical for the sources used in * Ligne n°88 : While there are some specific advantages to using sealed sources that * Ligne n°90 : essentially the same across all the industries. Sealed sources have * Ligne n°93 : * Robust, sources are amenable to a variety of environments * Ligne n°95 : sophisticated, the energy source is simple and can not fail * Ligne n°96 : * Portable energy source not requiring other sources of energy * Ligne n°112 : sources that are common to all industries. These include: * Ligne n°115 : * Energy source is always "on", thus requiring significant attention * Ligne n°117 : * Loss of the source can create an environmental and health hazard * Ligne n°118 : * "Spent" sources require appropriate disposal * Ligne n°128 : contain the sources, detectors and electronic equipment necessary for * Ligne n°129 : the measurement. The source is physically small in size, typically a * Ligne n°149 : of radioactive material, or may contain sources with activities * Ligne n°154 : such devices or sources within a facility may not be recognized, since * Ligne n°166 : The sources themselves are very small, less than 1 cm in diameter, and * Ligne n°168 : their proper operation. The use of radiography sources and devices are * Ligne n°170 : or loss. The small size of the source allows for unauthorized removal * Ligne n°171 : by an individual, and such a source may be placed into a pocket of a * Ligne n°182 : minerals is occurring, such as coal, oil, natural gas. The sources are * Ligne n°185 : components. The actual size of the sources inside the devices is * Ligne n°195 : applications of sources to identify the potential for developing * Ligne n°198 : (Information sources: Uranium Information Center (UIC, 2001); US * Ligne n°235 : * neutron sources (for level measurement) * Ligne n°244 : Gamma emitters; neutron sources such as: * Ligne n°296 : Gamma emitters (column scanning); neutron sources (level measurement) * Ligne n°304 : Gamma sources such as cesium-137 with americium-241 (for ash content) * Ligne n°311 : Gamma emitters, especially Cobalt-60, and neutron sources * Ligne n°319 : Neutron sources such as: * Ligne n°330 : neutron sources such as: * Ligne n°375 : Power sources for applications requiring small amounts of portable