non destructive testing of pipelines l annila abstract this paper shall present different contemporarily available non destructive testing ndt methods of pipelines and compare them to each other from the ...
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...Non destructive testing of pipelines l annila abstract this paper shall present different contemporarily available ndt methods and compare them to each other from the technical economical point view an evaluation their suitability for cern activities based on opinions experience various specialists at lhc st tis is also introduced introduction will five suitable principles advantages disadvantages be described use evaluated aim raise discussion applicability than radiography most commonly used method pipeline inspection principle that a source radiation directed toward inspected object sheet radiographic film placed behind setup usually takes few minutes exposure processing about advantage its reliability nowadays digital images can information saved transported by computers disadvantage danger saferad where no has been developed patented in uk eliminates personnel evacuation does not cause any work disruption otherwise similar before but it uses together flexible attenuating material ...