System for circular and complex tomography

Details System for circular and complex tomography System for circular and complex tomography

1977-09-22

1979-02-13

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250402, 250491, G03B 4116

Patent

active

041397762

ABSTRACT:
A system for conducting circular as well as complex tomographic procedures utilizing apparatus which has no mechanical linkage between the X-ray source and the X-ray receptor. The path of travel of the X-ray source both circularly and linearly is sensed by electromagnetic radiation and more particularly by light radiation which is generated by a laser. The linear travel is sensed by means of reflected laser radiation directed to the X-ray source and fed to an interferometer. The circular travel, on the other hand, is sensed by means of a laser gyroscope also receiving light radiation from a laser. Optical energy sensing means is thus used to generate command signals which are coupled to respective drive motors which act to rotate and when desirable, translate the X-ray receptor so that its motion follows the motion, both orbital and linear, of the X-ray source for performing any desired type of tomographic procedure.

REFERENCES:
patent: 3809886 (1974-05-01), Cochran
patent: 4087694 (1978-05-01), Hellstrom

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