To protect the operator from scattered radiation during operation, the Backscatter shield (More than 0.25mm lead equivalent and 6 inches in diameter) can be used. This backscatter shield should be positioned at the outer edge of the x-ray emitting cone before operating the device for X-ray exposure. Once the backscatter shield is fixed at the outer cone end, do not attempt to remove the backscatter shield or the X-ray emitting cone.