X-ray or gamma ray systems or devices – Specific application – Radiation coding
Patent
1997-05-19
1999-04-20
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Radiation coding
378162, G01N 2300
Patent
active
058964371
ABSTRACT:
An X-ray diagnostics apparatus for tomosynthesis has a radiation emitter and a reference object exclusively connected thereto so that the reference object has a fixed reference relationship to the radiation emitter. It is thus possible to determine the spacing of the radiation emitter from the radiation receiver and from the examination subject, the radiation angle and the transirradiation direction on the basis of the signals obtained from the radiation receiver upon transirradiation of the reference subject without having the reference object representing an impediment in the region of the examination subject.
REFERENCES:
patent: 5070454 (1991-12-01), Griffith
patent: 5299254 (1994-03-01), Dancer et al.
patent: 5359637 (1994-10-01), Webber
patent: 5598454 (1997-01-01), Franetzki et al.
Church Craig E.
Sirona Dental Systems GmbH & Co. KG
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