X-ray examination apparatus with x-ray filter

Details X-ray examination apparatus with x-ray filter X-ray examination apparatus with x-ray filter

1997-02-13

1998-06-16

Church, Craig E.

X-ray or gamma ray systems or devices

Beam control

Filter

378156, G21K 300

Patent

active

057683409

ABSTRACT:
An X-ray examination apparatus includes an X-ray filter with a plurality of filter elements for locally attenuating the X-ray beam. The X-ray absorptivity of each filter element is controlled by the amount of X-ray absorbing liquid with which the filter element is filled. The filling of filter elements is controlled by a voltage. The X-ray absorbing liquid contains a suspension of very small X-ray absorbing particles.

REFERENCES:
patent: 3755672 (1973-08-01), Edholm
patent: 5559853 (1996-09-01), Linders et al.
patent: 5625665 (1997-04-01), Fokkink et al.
patent: 5666396 (1997-09-01), Linders et al.

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