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ASTM E 3388 : 2023

Current

Current

The latest, up-to-date edition.

Standard Practice for Determining Image Unsharpness and Basic Spatial Resolution in Radiography and Radioscopy for High Energy Applications

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-08-2023

$103.13
Including GST where applicable

Committee
E 07
DocumentType
Standard Practice
Pages
8
PublisherName
American Society for Testing and Materials
Status
Current

1.1This practice covers the design and basic use of a gauge used to determine the image unsharpness and the basic spatial resolution of film radiographs or of digital images taken with CR imaging plates, digital detector arrays (DDA), or radioscopic systems (for example, with X-ray image intensifiers) for applications with Se-75, Ir-192, Co-60 and high energy sources with tube potentials 300 kV. The IQI may be used at lower tube potentials too, if the expected unsharpness is > 200 µm (SRbimage or SRbdetector > 100 µm). For the measurement of lower unsharpness values, the usage of the gauge described in Practice E2002 is recommended.

1.2This practice is applicable to radiographic and radioscopic imaging systems utilizing X-ray and gamma ray radiation sources.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4The gauge described can be used effectively if the duplex wire IQI of Practice E2002 does not provide sufficient contrast resolution.

1.5This 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.

1.6This 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.

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