L/D Ratio of Neutron Radiography Beams"> L/D Ratio of Neutron Radiography Beams">
    ASTM WK22480

    Revision of E803 - 91(2008) Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams

    (What is a Work Item?)

    Active Standard: E803 - 91(2013)

    Developed by Subcommittee: E07.05 | Committee E07 | Contact Staff Manager


    1. Rationale

    To update the standard making the inclusion of nylon wires optional and allowing increased use of digital technologies.


    beam collimation; L/D ratio; neutron radiography; radiographic unsharpness; umbral shadow; L/D ratio; Neutron radiographic testing; NU (no umbra) technique; Radiographic examination; Umbra;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Joshua Vanderstelt

    Draft Under Development