ASTM E2446-05
Standard Practice for Classification of Computed Radiology Systems
- Standard No.
- ASTM E2446-05
- Release Date
- 2005
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM E2446-05(2010)
- Latest
- ASTM E2446-23
- Scope
1.1 This practice describes the evaluation and classification of a computed radiography (CR) system, a particular phosphor imaging plate (IP), system scanner and software, in combination with specified metal screens for industrial radiography. It is intended to ensure that the evaluation of image quality, as far as this is influenced by the scanner/IP system, meets the needs of users.
1.2 The practice defines system tests to be used to classify the systems of different suppliers and make them comparable for users.
1.3 The CR system performance is described by signal and noise parameters. For film systems, the signal is represented by gradient and the noise by granularity. The signal-to-noise ratio is normalized by the basic spatial resolution of the system and is part of classification. The normalization is given by the scanning aperture of 100 m diameter for the micro-photometer, which is defined in Test Method E 1815 for film system classification. This practice describes how the parameters shall be measured for CR systems.
1.4 The values stated in SI are to be regarded as the standard.
1.5 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 and health practices and to determine the applicability of regulatory limitations prior to use.
ASTM E2446-05 Referenced Document
- ASTM E1316 Standard Terminology for Nondestructive Examinations
- ASTM E1815 Standard Test Method for Classification of Film Systems for Industrial Radiography
- ASTM E2002 Standard Practice for Determining Total Image Unsharpness in Radiology
- ASTM E2007 Standard Guide for Computed Radiography
- ASTM E2033 Standard Practice for Computed Radiology (Photostimulable Luminescence Method)
- ASTM E2445 Standard Practice for Qualification and Long-Term Stability of Computed Radiology Systems
ASTM E2446-05 history
- 2023 ASTM E2446-23 Standard Practice for Manufacturing Characterization of Computed Radiography Systems
- 2016 ASTM E2446-16 Standard Practice for Manufacturing Characterization of Computed Radiography Systems
- 2015 ASTM E2446-15 Standard Practice for Manufacturing Characterization of Computed Radiography Systems
- 2005 ASTM E2446-05(2010) Standard Practice for Classification of Computed Radiology Systems
- 2005 ASTM E2446-05 Standard Practice for Classification of Computed Radiology Systems
