Abstract

A reconfigurable radiographic aperture mask collimator apparatus includes a body portion configured to receive an attenuating liquid having a first attenuation value per unit volume. The apparatus further includes a grid portion mated to a face of the body portion and a plurality of passageways each having a cross sectional area and a length. The plurality of passageways is disposed within the grid portion. A plurality of plugs is slidably disposed within the plurality of passageways, and each of the plurality of plugs has a second attenuation value per unit volume less than the first attenuation value. One of the plurality of passageways is filled with a column of attenuating liquid that is coincident with an end of the one of a plurality of plugs contained therein, and wherein the column substantially conforms to the cross sectional area.

Document Type

Patent

Status

Issued

Issue Date

8-30-2016

Patent Number

US 9431141 B1 [ 9,431,141 ]

CPC Classification

G21K1/04

Application number

14/210,581

Assignees

United States of America, as represented by the Secretary of the Air Force, Washington, DC (US)

Filing Date

3-14-2014

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