Scatter correction device for radiative tomographic scanner

Details Scatter correction device for radiative tomographic scanner Scatter correction device for radiative tomographic scanner

2005-07-26

2005-07-26

Porta, David (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

Reexamination Certificate

active

06921902

ABSTRACT:
A scatter correction device for radiative tomographic scanners is disclosed. The device comprises at least one steady support component and multiple beam stoppers made of high Z materials such as lead and wolfram. Each beam stopper has two ends fixed on the steady support component respectively. Theses beam stoppers can thus be sustained at fixed locations by the steady support component. During scanning an object, the device is placed between the object and detectors. But when the scatter correction device is applied to a CT scanner, the device is placed between object and radiation source. It attenuates part of the primary radiation with very small affects on the scattered radiation.

REFERENCES:
patent: 4679221 (1987-07-01), O'Brien et al.
patent: 5780855 (1998-07-01), Pare et al.
patent: 5903008 (1999-05-01), Li
patent: 6590213 (2003-07-01), Wollenweber

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