A general scheme for constructing inversion algorithms for cone beam CT.
A mixed norm estimate for the X-ray tranform.
A support theorem for the complex Radon transform.
An X-ray transform estimate in Rn.
We prove an x-ray estimate in general dimension which is a stronger version of Wolff's Kakeya estimate [12]. This generalizes the estimate in [13], which dealt with the n = 3 case.