Abstract: An electric brush module according to an embodiment is used in an X-ray Computed Tomography (CT) apparatus including a slip ring and a gantry fixed part and includes an electric brush holder, an electric brush, and a wear debris collecting mechanism. The electric brush holder is provided in the gantry fixed part, has an arc shape with an opening part formed therein, and has a plate-like shape. The electric brush is attached to the electric brush holder and is configured to transmit either electric power or a signal, by being in contact with the slip ring. The wear debris collecting mechanism is attached to the electric brush holder, so as to form a substantially hermetically-closed space, together with the electric brush and the electric brush holder.