ASTM E2597/E2597M - 14

    Стандартное практическое руководство по определению характеристик матриц цифровых детекторов в процессе производства

    Active Standard ASTM E2597 / E2597M Developed by Subcommittee: E07.01

    Book of Standards Volume: 03.04


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    Significance and Use

    4.1 This practice provides a means to compare DDAs on a common set of technical measurements, realizing that in practice, adjustments can be made to achieve similar results even with disparate DDAs, given geometric magnification, or other industrial radiologic settings that may compensate for one shortcoming of a device.

    4.2 A user must understand the definitions and corresponding performance parameters used in this practice in order to make an informed decision on how a given DDA can be used in the target application.

    4.3 The factors that will be evaluated for each DDA are: interpolated basic spatial resolution (iSRbdetector), efficiency (Detector SNR-normalized (dSNRn) at 1 mGy, for different energies and beam qualities), achievable contrast sensitivity (CSa), specific material thickness range (SMTR), image lag, burn-in, bad pixels and internal scatter radiation (ISR).