X-ray or gamma ray systems or devices – Specific application – Tomography
Patent
1987-12-31
1989-04-18
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Tomography
378 39, 378 21, A61B 600
Patent
active
048233692
ABSTRACT:
A dental x-ray diagnostics installation has a rotary unit carrying an x-ray source and a radiation detector disposed behind a secondary diaphragm, the rotary unit rotating around the jaw of a patient to produce panorama tomograph exposures of the patient's jaw. The radiation detector generates electrical signals proportional to the incident radiation intensity. To simplify signal processing, the detector is formed of one or more semiconductor detectors having a scintillation layer which corresponds to the size of the opening in the secondary diaphragm. The voltages acquired by the detector are converted to digital form, and stored in an image memory. A computer calculates a total image from the signals supplied by the detector, and stored in the memory, during a complete exposure. The signals from the image memory are combined to generate a tomogram of a desired slice of the patient's jaw.
REFERENCES:
patent: 4188537 (1980-02-01), Franke
patent: 4239971 (1980-12-01), Cushman
patent: 4298800 (1981-11-01), Goldman
patent: 4383327 (1983-05-01), Kruger
patent: 4492869 (1985-01-01), Suzuki et al.
"Direct Soft X-Ray Response of a Charge-Coupled Image Sensor," Koppel, Rev. Sci. Instrum., vol. 48, No. 6, Jun. 1977, pp. 669-672.
Doebert Michael
Guenther Werner
Heubeck Erich
Muether Manfred
Werner Leonhard
Church Craig E.
Freeman John C.
Siemens Aktiengesellschaft
LandOfFree
Dental x-ray diagnostics installation for producing panorama sli does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dental x-ray diagnostics installation for producing panorama sli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental x-ray diagnostics installation for producing panorama sli will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2400914