Patent ID: 11885927
Assignee: BATTELLE MEMORIAL INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. 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.