US 11,885,927 B2 · Image quality test article

Abstract

A test article containing test objects for assessing and evaluating an image producing x-ray computed tomography system, includes: an exterior shell assembly surrounding an inner volume; a base assembly comprising a flat base portion; a support structure comprising one or more partitions configured to support the test objects, a pair of component supports configured to support an angled bar test object, and one or more brackets configured to attach to at least one of: a partition and the flat base portion; an object length test object connected to the one or more partitions; an angled bar test object connected to the pair of component supports; an NEQ test object comprising a support extension with a threaded attachment configured to connect to a threaded attachment on another test object; and an acetal cylinder test object comprising two threaded mounting extensions and configured to support at least one metal annular device.

Claims20

Dependent claims

An acetal cylinder test object comprising:

at least two metal annular devices;
and
at least two acetal cylinder forming sections comprising a first section and a second section, each section of the at least two acetal cylinder forming sections being detachable from one another, wherein the first section comprises a recess and the second section comprises a raised portion, the recess of the first section configured to receive the raised portion of the second section for detachable interconnection of the first section and the second section, wherein the first section and the second section each include a threaded connector configured to interconnect with another threaded connector;
and
wherein at least a portion on one of the at least two acetal cylinder forming sections comprises a cylindrical undercut configured to receive at least one of the two metal annular devices and to limit positioning of one of the at least two metal annular devices on one of the at least two acetal cylinder forming sections.

2 more elements

A test article comprising:

a support structure supporting an acetal cylinder test object to be used for assessing and evaluating an image producing x-ray computed tomography system, wherein the image produced comprises x-ray attenuation characteristics of the acetal cylinder test object, wherein the acetal cylinder test object comprises:
at least two metal annular devices;
and
at least two acetal cylinder forming sections comprising a first section and a second section, each section of the at least two acetal cylinder forming sections being detachable from one another, wherein the first section comprises a recess and the second section comprises a raised portion, the recess of the first section configured to receive the raised portion of the second section for detachable interconnection of the first section and the second section, wherein the first section and the second section each include a threaded connector configured to interconnect with another threaded connector;
and
wherein at least a portion on one of the at least two acetal cylinder forming sections comprises a cylindrical undercut configured to receive at least one of the two metal annular devices and to limit positioning of one of the at least two metal annular devices on one of the at least two acetal cylinder forming sections.

3 more elements

Dependencies are inferred from the claim text.

Image quality test article

Life of this patent

Image quality test article

Life of this patent

Abstract

Claims20