Modular detector arrangement for X-ray tomographic system

Details Modular detector arrangement for X-ray tomographic system Modular detector arrangement for X-ray tomographic system

1995-05-22

1996-01-23

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 4, A61B 602

Patent

active

054870984

ABSTRACT:
Preassembled detector modules, each containing several detectors, and preassembled anti-scatter modules, each containing several anti-scatter plates, are mounted on a spine, which is attached to the rotating gantry of a CAT scanner by adjustable end supports. A pair of dowel pins in accurately drilled reference holes in the spine control the location and alignment of each module, one in a module round hole and one in a module slot. Critical dimensions in the modules are referenced to the hole, the slot, and reference surfaces on the modules contact the spine so as to reduce tolerance build-up. As such the modules can be easily manufactured using standard machine tools, and easily assembled and secured to a rotatable disk of a tomographic system.

REFERENCES:
patent: 4306155 (1981-12-01), Cotic
patent: 4338521 (1982-07-01), Shaw et al.
patent: 4414473 (1983-11-01), Hoffman et al.
patent: 4417354 (1983-11-01), Pfeiler
patent: 4429227 (1984-01-01), DiBianca et al.
patent: 4934832 (1990-06-01), Strauss
patent: 5025462 (1991-06-01), Saito et al.
patent: 5164973 (1992-11-01), Takahashi et al.

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