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ASTM-E1647:2022 Edition

ASTM-E1647:2022 Edition

$34.13

E1647-16(2022) Standard Practice for Determining Contrast Sensitivity in Radiology

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ASTM 2022
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ASTM E1647-16-Reapproved2022

Active Standard: Standard Practice for Determining Contrast Sensitivity in Radiology

ASTM E1647

Scope

1.1 This practice covers the design and material selection of a contrast sensitivity measuring gauge used to determine the minimum change in material thickness or density that may be imaged without regard to unsharpness limitations.

1.2 This practice is applicable to transmitted-beam radiographic imaging systems (film, radioscopy, computed radiography, and digital detector array image detectors) utilizing X-ray and gamma ray radiation sources.

1.3 The values stated in inch-pound units are to be regarded as standard. The SI units given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific safety statements, see NIST/ANSI Handbook 114 Section 8, Code of Federal Regulations 21 CFR 1020.40 and 29 CFR 1910.96.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

contrast sensitivity gauge; gamma ray; image formation; image processing; image quality indicator; line-pairs per millimeter; penetrating radiation; unsharpness; X-ray ;

ICS Code

ICS Number Code 11.040.50 (Radiographic equipment)

DOI: 10.1520/E1647-16R22

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