Motion capture as a tool for radiation dose estimation in the decommissioning of ATLAS’s inner detector

This document details the methodology and results behind utilising Phasespace motion-capture technology, to assist in estimating a radiation dose that technicians will receive during the decommissioning of the ATLAS inner detector (ID). Dose estimation was achieved by constructing a mock-up of the current ID and having a technician carry out the same work that will occur during actual decommissioning. The Phasespace motion capture system tracked the movement of the technician as they worked and from this, a human model was created within Autodesk Motionbuilder and imported into the game engine Virtalis 3-D renderer. Within Virtalis a virtual model of the mock-up with an up to date FLUKA radiation map overlaid, had been drawn. The human model was imported into Virtalis and allowed to interact with the virtual radiation as it worked. Once the model animation had finished, the total dose accumulated by it was determined. The final estimated dose was determined to be 21.92 μSv.