Nuclear industry, to produce energy for example, produces also some radioactive waste. Legislation requires producers to sort their waste by activity and type of isotopes, and to package them in order to forward them to the appropriate reprocessing or storage facility. Our lab LMDE (Laboratoire de Mesures sur Dechets nucleaires et Expertise) is in charge of the characterization of the majority of waste produced by CEA-Valduc. As measurements we do have to be reliable, we also develop methods and techniques to improve them. We present to this symposium our characterization bed for germanium detectors, based on measurements and Geant4 simulations, and our study on object characterization.
The ROOT system in an Object Oriented framework for large scale data analysis. ROOT written in C ++, contains, among others, an efficient hierarchical 00 database, a C ++ interpreter. advanced statistical analysis (multi-dimensional histogramming, fitting, minimization, cluster finding algorithms) and visualization tools. The user interacts with ROOT via a graphical user interface, the command line or batch scripts. The command and scripting language is C + + (using the interpreter) and large scripts can be compiled and dynamically linked in. The 00 database design has been optimized for parallel access (reading as well as writing) by multiple processes.
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.