X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1989-11-17
1991-07-09
Westin, Edward P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 22, 378189, 378 21, 378 15, 378 19, H05G 164, H01J 3510
Patent
active
050311980
ABSTRACT:
A deformable, inner ring (22) is mounted by spokes (24) to internal structure (26) of a CT scanner. A plurality of circuit boards (32) are bent in a circular arc that is concentric with an inner circular surface of the first ring and secured to the first ring such that the arcuate bend is maintained. Bending the flexible circuit boards into an arc stresses them such that they are cantilevered outward from the first ring, yet are held along the circular arc. A second ring (44) is connected to the outer ends of the circuit boards to assure that both ends of the circuit board are held in like diameter parallel circles. Brackets (52) hold the side edges of the circuit boards straight and linear. In this manner, the circuit boards on which radiation detectors (36) are mounted become a rigid, circular mounting assembly for the radiation detectors and provide the sole support for the second ring.
REFERENCES:
patent: 4464776 (1984-08-01), Erker
patent: 4571495 (1986-02-01), Distler et al.
patent: 4723259 (1988-02-01), Amor et al.
patent: 4845731 (1989-07-01), Vidmar et al.
patent: 4853946 (1989-08-01), Elliott et al.
Deucher Joseph S.
Gardner Charles A.
Zupancic Anton Z.
Picker International Inc.
Westin Edward P.
Wong Don
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