Combined Measurements with Three-Dimensional Design Information Verification System and Gamma Ray Imaging
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.
SEQUEIRA Vitor;
FIOCCO Marco;
GONCALVES Joao;
2007-01-30
Institute of Nuclear Materials Management (INMM)
JRC36204
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