X-ray or gamma ray systems or devices – Beam control – Filter
Patent
1993-04-26
1994-10-11
Church, Craig E.
X-ray or gamma ray systems or devices
Beam control
Filter
378145, G21K 300
Patent
active
053554000
ABSTRACT:
A device for compensating large absorption differences when photographing the thorax by means of X-ray radiation, whereby a compensating filter is placed close to the X-ray tube in the beam of the X-ray tube perpendicular to the optical axis of the X-ray radiation, whereby a support running in the direction of the optical axis is placed on the X-ray tube housing above the optical axis at an angle of 93.degree. to 105.degree. to the vertical, at which a filter holder, which can be displaced in the direction of the support, is arranged with the compensating filter, allowing optimum matching of the compensating filter to each patient.
REFERENCES:
patent: 2630536 (1953-03-01), Vladeff
patent: 5056128 (1991-10-01), Thompson
Agfa-Gevaert Aktiengesellschaft
Church Craig E.
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