Patent ID: 8759768

Claim:
A movable device for measuring a physical quantity of nuclear material contained in a shielded cell, where the movable device can be brought up against the shielded cell and can be retracted therefrom, and the device is configured to carry out a measurement in a position against the shielded cell, the device comprising: a carriage; a support placed on the carriage; a shielded container comprising a body and a door, wherein a chamber, which is an interior space of the shielded container, is delimited within the body of the shielded container, the shielded container is arranged on the support, and the shielded container includes an opening configured to be aligned with an opening in a wall of the shielded cell to provide the chamber access to the nuclear material stored within the shielded cell; a measurement casing surrounding the shielded container; and one or more measurement sensors fastened to an external surface of the measurement casing, wherein said one or more measurement sensors are configured to measure a physical quantity of the nuclear material stored inside the shielded container when the door of the chamber of the shielded container is closed in such a manner that the shielded container's chamber is closed off from the shielded cell.