| 摘要 |
A diagnostic scanning apparatus includes a hollow rotor sized to receive a patient. First and second flanges are connected to and extend radially outward from the rotor in a spaced-apart relationship, each of the first and second flanges including, at least in part, a magnetically-permeable material. A radiation source is affixed to the first flange and/or the rotor. A first axial actuator generates a variable magnetic field, is fixedly disposed adjacent to the first flange and can magnetically pull the first flange in a first axial direction of the rotor. A second axial actuator generates a variable magnetic field, is fixedly disposed adjacent to the second flange and can magnetically pull the second flange in a second axial direction of the rotor that is opposite of the first axial direction. The first and second axial actuators are both at least substantially disposed between the first and second flanges. |
| 主权项 |
1. An apparatus comprising:
a rotor that is rotatable about a rotational axis, has a hollow interior and comprises, at least in part, a magnetically-permeable material, first and second flanges connected to and extending radially outward from the rotor in a spaced-apart relationship, each of the first and second flanges comprising, at least in part, a magnetically-permeable material, a first axial actuator configured to generate a variable magnetic field, the first axial actuator being fixedly disposed adjacent to, but spaced from, the first flange and configured to magnetically pull the first flange in a first axial direction of the rotor, and a second axial actuator configured to generate a variable magnetic field, the second axial actuator being fixedly disposed adjacent to, but spaced from, the second flange and configured to magnetically pull the second flange in a second axial direction of the rotor that is opposite of the first axial direction, wherein the first and second axial actuators are both at least substantially disposed between the first and second flanges. |
