Authors: Niko Tsutskiridze
Publisher: AUTOMATED CONTROL SYSTEMS – No 1(28)
Simulation process of real experiment is carried out with the ATLAS experiment in European Organization for Nuclear Research (CERN). As a result, two kinds of data are obtained: Data from real experiments (Data) and Modeling process (MC). As their analysis shows, there are Data vs. MC differences for some region of ATLAS detector. According to one of the opinions, the difference can be caused by geometric inaccuracies. There are two hypotheses that challenge geometric inaccuracies: – Inaccuracies of geometry transformations added by simulation software infrastructure itself; – Difference between as-built and geometry descriptions. Creation of special tests examples and analysis of COIL geometry of ATLAS detector were carried out in order to check above hypotheses. As a result important inaccurateness were detected.