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The invention relates to a radiography appliance comprising a column and a movable arm mounted such that it slides along the column and rotates about an axis oriented perpendicularly to the main direction of the column, one end of the arm comprising a detector and the other end a radiation source. The appliance is characterised in that it comprises means for locking the arm against rotation and/or against translation.
Simon Nessim Henein, Loïc Benoît Tissot-Daguette