X-ray or gamma ray systems or devices – Specific application – Tomography
Patent
1989-07-31
1991-02-19
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Specific application
Tomography
378 40, A61B 614
Patent
active
049950622
ABSTRACT:
A dental x-ray diagnostics installation for producing panorama tomograms of the jaw of a patient has clocked CCD sensors which generate electrical signals proportional to the radiation intensity thereon, and which are operated at a speed to simulate a moving x-ray film. For the purpose of simultaneously acquiring exposures of a number of different jaw slices at different depths of field during one exposure, at least some of the CCD columns are driven with different clock frequencies by separate clock inputs.
REFERENCES:
patent: Re32779 (1988-11-01), Kruger
patent: 4188537 (1980-02-01), Franke
patent: 4442534 (1984-04-01), Haendle et al.
patent: 4823369 (1989-04-01), Guenther et al.
patent: 4878234 (1989-10-01), Pfeiffer et al.
Pfeiffer Joachim
Schulze-Ganzlin Ulrich
Schwotzer Axel
Fields Carolyn E.
Porta David P.
Siemens Aktiengesellschaft
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