X-ray technique-based nonintrusive inspection apparatus...

Details X-ray technique-based nonintrusive inspection apparatus... X-ray technique-based nonintrusive inspection apparatus...

2005-05-10

2005-05-10

Church, Craig E. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000, C378S151000

Reexamination Certificate

active

06891919

ABSTRACT:
An x-ray-based nonintrusive inspection apparatus has a collimator shield. An adjusting actuator is actuable to move the collimator shield between a pre-scanning position and a CT scanning position, in the pre-scanning position, the collimator shield exposing a smaller portion of a respective crystal to the x-rays than in the CT scanning position. A controller is connected to a gantry motor and the adjusting actuator. The controller controls the motor and the adjusting actuator such that the collimator shield is in the pre-scanning position when a gantry is stationary and in the CT scanning position when the gantry is rotating.

REFERENCES:
patent: 6487267 (2002-11-01), Wolter

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