Abstract: A method of determining whether a stack of components in a device are in a desired order includes irradiating each of the components in the device with an energy beam. The radiation emissions from each of the irradiated components are detected with a radiation detector. The detected radiation emissions are analyzed using a central processing unit (CPU) to determine whether the components in the device are stacked in the desired order.

Abstract: A method of determining whether a stack of components in a device are in a desired order includes irradiating each of the components in the device with an energy beam. The radiation emissions from each of the irradiated components are detected with a radiation detector. The detected radiation emissions are analyzed using a central processing unit (CPU) to determine whether the components in the device are stacked in the desired order.

Abstract: An apparatus for locating a magnet and/or determining the orientation of the apparatus relative to the magnet. In one embodiment, the apparatus includes a multi-axis magnetic field sensor movable in a reciprocating manner so as to permit sensor readings at multiple spaced locations. In another embodiment, the apparatus includes a plurality of multi-axis magnetic field sensors arrayed along a straight line. The apparatus may be used in a number of medical and other applications, including tissue resection, tracking movement of a medical device in a body cavity and tracking movement of an internal organ.