ASTM E1735-19 Standard Test Method for Determining Relative Image Quality of Industrial Radiographic Film Exposed to X-Radiation from 4 to 25MeV

ASTM E1735-19 Standard Test Method for Determining Relative Image Quality of Industrial Radiographic Film Exposed to X-Radiation from 4 to 25MeV

ASTM E1735-19 test method provides a test for measuring the image quality of the X-ray system or any component of the system.

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    Scope:

    ASTM E1735-19 test method covers determination of the relative image quality response of industrial radiographic film when exposed to X-radiation sources having photon energies from 4 to 25 MeV. Evaluation of the film is based on the visibility of holes in a special image quality indicator (IQI). It is essential to state the exposure parameters and achieved density, processing chemistry, processing cycle, and processing temperature.

    Test Procedure:  

    ASTM E1735-19 test method provides a test for determining the relative image quality response of radiographic film when exposed to 4 to 25 MeV X rays as any single component of the total X-ray system (for example, screens) is varied. By holding the technique parameters (except exposure time) and processing parameters constant, the image quality response of radiographic film may be evaluated on a relative basis. 

    Specimen size:

    The ASTM E1735-19 test specimen consists of a 15-cm (6-in.) steel absorber with a special IQI placed on the radiation (source) side of the absorber.

    The source of radiation shall be an X-ray generator capable of operating in any part (or all) of the range from 4 to 25 MeV.

    The minimum source to film distance to be used shall be 1 m (39.4 in.).

    Conclusion:

    ASTM E1735-19 provides detailed and thorough information about a test for measuring the image quality of the X-ray system or any component of the system.

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