ASTM E2736 - 17

    Standard Guide for Digital Detector Array Radiography

    Active Standard ASTM E2736 | Developed by Subcommittee: E07.01

    Book of Standards Volume: 03.04


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    Significance and Use

    4.1 This standard provides a guide for the other DDA standards (see Practices E2597, E2698, and E2737). It is not intended for use with computed radiography apparatus. Figure 1 describes how this standard is interrelated with the aforementioned standards.

    FIG. 1 Flow Diagram Representing the Connection Between the Four DDA Standards

    Flow Diagram Representing the Connection Between the
 Four DDA StandardsFlow Diagram Representing the Connection Between the
 Four DDA Standards

    4.2 This guide is intended to assist the user to understand the definitions and corresponding performance parameters used in related standards as stated in 4.1 in order to make an informed decision on how a given DDA can be used in the target application.

    4.3 This guide is also intended to assist cognizant engineering officers, prime manufacturers, and the general service and manufacturing customer base that may rely on DDAs to provide advanced radiological results so that these parties may set their own acceptance criteria for use of these DDAs by suppliers and shops to verify that their parts and structures are of sound integrity to enter into service.

    4.4 The manufacturer characterization standard for DDA (see Practice E2597) serves as a starting point for the end user to select a DDA for the specific application at hand. DDA manufacturers and system integrators will provide DDA performance data using standardized geometry, X-ray beam spectra, and phantoms as prescribed in Practice E2597. The end user will look at these performance results and compare DDA metrics from various manufacturers and will decide on a DDA that can meet the specification required for inspection by the end user. See Sections 5 and 8 for a discussion on the characterization tests and guidelines for selection of DDAs for specific applications.

    4.5 Practice E2698 is designed to assist the end user to set up the DDA with minimum requirements for radiological examinations. This standard will also help the user to get the required SNR, to set up the required magnification, and provides guidance for viewing and storage of radiographs. Discussion is also added to help the user with marking and identification of parts during radiological examinations.

    4.6 Practice E2737 is designed to help the end user with a set of tests so that the stability of the performance of the DDA can be confirmed. Additional guidance is provided in this document to support this standard.

    4.7 Figure 1 provides a summary of the interconnectivity of these four DDA standards.

    4.8 DDAs may be used with significant success under a wide energy range, i.e. from 10 kV to 20 MeV if configured appropriately. However in this document some phantoms such as the duplex wire gauge (Practice E2002) may not give an accurate representation of the basic spatial resolution at energies above 600 kV.

    1. Scope

    1.1 This standard is a user guide, which is intended to serve as a tutorial for selection and use of various digital detector array systems nominally composed of the detector array and an imaging system to perform digital radiography. This guide also serves as an in-detail reference for the following standards: Practices E2597, E2698, and E2737.

    1.2 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.

    1.3 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E94 Guide for Radiographic Examination Using Industrial Radiographic Film

    E155 Reference Radiographs for Inspection of Aluminum and Magnesium Castings

    E192 Reference Radiographs of Investment Steel Castings for Aerospace Applications

    E1000 Guide for Radioscopy

    E1316 Terminology for Nondestructive Examinations

    E1320 Reference Radiographs for Titanium Castings

    E1815 Test Method for Classification of Film Systems for Industrial Radiography

    E1817 Practice for Controlling Quality of Radiological Examination by Using Representative Quality Indicators (RQIs)

    E2002 Practice for Determining Total Image Unsharpness and Basic Spatial Resolution in Radiography and Radioscopy

    E2422 Digital Reference Images for Inspection of Aluminum Castings

    E2445 Practice for Performance Evaluation and Long-Term Stability of Computed Radiography Systems

    E2446 Practice for Manufacturing Characterization of Computed Radiography Systems

    E2597 Practice for Manufacturing Characterization of Digital Detector Arrays

    E2660 Digital Reference Images for Investment Steel Castings for Aerospace Applications

    E2669 Digital Reference Images for Titanium Castings

    E2698 Practice for Radiological Examination Using Digital Detector Arrays

    E2737 Practice for Digital Detector Array Performance Evaluation and Long-Term Stability

    ISO Document

    ISO 17636-2 Non-Destructive Testing of WeldsRadiographic Testing - Part 2: X- and Gamma-Ray Techniques with Digital Detector


    ICS Code

    ICS Number Code 11.040.50 (Radiographic equipment)

    UNSPSC Code

    UNSPSC Code 41111800(Non destructive examination equipment)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E2736-17

    Citation Format

    ASTM E2736-17, Standard Guide for Digital Detector Array Radiography, ASTM International, West Conshohocken, PA, 2017, www.astm.org

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