title: X-ray microradiographs of laser fusion targets: improved image analysis techniques.
abstract: Improved techniques for analyzing x-ray microradiographic images of laser fusion targets are described. A fast Fourier transform (FFT) technique is used to detect efficiently inner-outer wall nonconcentricities of +/-95 A in hollow glass shells having a mean wall thickness of 1 microm. An improved technique for detecting and quantifying local wall-thickness variations is described. These results are compared with previous sensitivities.
authors.forename: R L
authors.initials: RL
authors.lastname: Whitman
authors.forename: R H
authors.initials: RH
authors.lastname: Day