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|Title:||Combined Measurements with Three-Dimensional Design Information Verification System and Gamma Ray Imaging|
|Authors:||SEQUEIRA VITOR; FIOCCO MARCO; GONCALVES JOAO|
|Citation:||Proceedings of 47th Annual Meeting of the Institute for Nuclear Materials Management p. Paper 252|
|Publisher:||Institute of Nuclear Materials Management (INMM)|
|Type:||Articles in periodicals and books|
|Abstract:||Oak Ridge National Laboratory (ORNL) and Lawrence Livermore National Laboratory (LLNL) have jointly performed tests to demonstrate combined measurements with a three-dimensional (3D) design information verification (DIV) system and a gamma-ray imager for potential safeguard applications. The 3D DIV system was made available by the European Commission’s Joint Research Center (JRC) to ORNL under a collaborative project between the U.S. Department of Energy and the European Atomic Energy Community (EURATOM). The system is able to create 3D maps of rooms and objects and of identifying changes in positions and modifications with a precision on the order of millimeters. The gamma ray imaging system consists of a 4π field-of-view Compton imaging system which has two fully operational DSSD (Double-Sided Segment Detector) High-Purity Germanium (HPGe) detectors developed at LLNL. The Compton imaging instrument not only provides imaging capabilities, but provides excellent energy resolution which enables the identification of radioisotopes and nuclear materials. Joint Research Center was responsible to merge gamma-ray images with the 3D range maps. The results of preliminary first measurements performed at LLNL demonstrate, for the first time, mapping of panoramic gamma-ray images into 3D range data.|
|JRC Institute:||Space, Security and Migration|
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