Open drum gantry for computed tomography system

A gantry rail for a gantry computed tomography (CT) system includes a secondary side of a rotary transformer and an annular body having an annular rolling surface and an annular slip ring surface. The annular body is aligned orthogonal to a longitudinal axis of the gantry CT system. The annular rolling surface has a normal vector that extends radially outward and orthogonal to the longitudinal axis. The annular slip ring surface defines a plane orthogonal to the longitudinal axis, and includes a slot disposed in the slip ring surface. The slot is configured to engage the secondary side of the rotary transformer. 种用于机架计算机断层扫描（CT）系统的机架轨包括：旋转变压器的次级侧，以及具有环形滚动表面和环形滑环表面的环形体。环形体与机架CT系统的纵向轴正交对准。环形滚动表面具有径向向外延伸并且与纵向轴正交的法向量。环形滑环表面限定与纵向轴正交的平面，并且包括被部署在滑环表面中的槽。槽被配置成接合旋转变压器的次级侧。