X-ray or gamma ray systems or devices – Specific application – Tomography
Patent
1995-05-11
1997-01-14
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Tomography
378 58, G01N 2304
Patent
active
055947689
ABSTRACT:
A laminograph including, a radiation source for generating radiation towards a subject, a radiation surface sensor device with a two-dimensional resolution, fitted opposite to the radiation source for detecting the radiation from the radiation source which has passed through the subject, a scanning device for moving the subject to take a plurality of different positions between the radiation source and the radiation surface sensor device and for scanning the subject in each of the different positions by the radiation from the radiation source. The laminograph further includes a data collection device for collecting the plurality of outputs of the radiation surface sensor device during the scanning by the scanning device to obtain the plurality of radiographic images of the subject in the different positions, a position measurement device for measuring multiple positions of a focal plane at multiple places of the subject, a displacement measurement device for measuring multiple displacement based on the multiple positions of the focal plane measured by the position measurement device, and an image processing device for adding and averaging the plurality of radiographic images with the displacements to obtain a radiographic image of the subject focused on the focal plane as a tomographic image of the subject.
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Materials Evaluation, vol. 48, May 1990, pp. 618-622, S. F. Buchele, et al., "Forming Laminograms on Object-Dependent Surfaces".
Bio-Imaging Research, Inc., p. 6, "Industry's New Vision Computed Tomography and Other Imaging Techniques" No date.
Fujii Masashi
Kosuge Hideo
Mori Miki
Suzuki Hirokatsu
Tsuchiya Takeo
Kabushiki Kaisha Toshiba
Porta David P.
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