High resolution X-ray collimator/detector system having reduced

Details High resolution X-ray collimator/detector system having reduced High resolution X-ray collimator/detector system having reduced

1986-12-19

1988-06-14

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

2505051, G01T 1185, H01J 4702

Patent

active

047513918

ABSTRACT:
An ionization chamber X-ray detector which minimizes the effects of leakage X-rays in systems where a collimator is employed to define resolution. The active collection volume of each detector element is reduced to the actual volume occupied by the negative ion cloud resulting from an incident X-ray beam for optimum response to desired radiation while minimizing response to leakage radiation by a combination of reducing the width of the collector electrodes with wider spaces in between the collector electrodes, and providing metallized guard electrodes between the collector electrodes. The guard electrodes serve to collect electrons freed by ionization between the collector electrodes resulting from "noise" X-rays, preventing these particular electrons from building up a space charge, or from reaching the actual collector electrodes. In addition, electric field distortions are minimized, with a consequent avoidance of adverse effects on detector response characteristics.

REFERENCES:
patent: 3385988 (1968-05-01), Hyun
patent: 4031396 (1977-06-01), Whetten et al.
patent: 4075492 (1978-02-01), Boyd et al.
patent: 4367409 (1983-01-01), Klausz
patent: 4392237 (1983-07-01), Houston
patent: 4394578 (1983-07-01), Houston et al.
patent: 4419585 (1983-12-01), Strauss et al.
patent: 4420689 (1983-12-01), Rogers et al.
patent: 4455488 (1984-06-01), Conrad et al.
patent: 4475043 (1984-10-01), Houston
patent: 4535245 (1985-08-01), Zonneveld et al.
patent: 4581536 (1986-04-01), Groppetti et al.
patent: 4638499 (1987-01-01), Eberhard et al.

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