ASTM E1936-97
Historical Standard: ASTM E1936-97 Standard Reference Radiograph for Evaluating the Performance of Radiographic Digitization Systems
SUPERSEDED (see Active link, below)
ASTM E1936
1. Scope
1.1 This reference radiograph covers a series of test targets suitable for evaluating, quantifying, and documenting performance parameters of the radiographic digitization process or the electronic image reconstruction process, or both. This reference radiograph can be used for visual and electronic analysis of digitization systems. This is the first of three related standards. Subsequent standards will provide guidance on the use of the test targets and recommended system performance levels.
1.2 This reference radiograph provides a series of test targets to provide a vehicle for the evaluation of spatial resolution, density contrast sensitivity, dynamic range, and spatial linearity as well as other aspects of a digitization system. The test targets are suitable for evaluating a digitization system with a spatial resolution down to ~1/1000 in (25 micrometers (u) a density contrast sensitivity down to 0.02 optical density (OD), a density range of 0.5 to 4.5 OD, and a film size capacity of 14 in. (355 mm) wide by 17 in. (431 mm) long.
1.3 The values stated in inch-pound units are to be regarded as the standard, with the exception of the spatial resolution targets (6.2 and 6.6 ) which are stated in SI units.
1.4 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 determine the applicability of regulatory limitations prior to use.
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
E1079 Practice for Calibration of Transmission Densitometers
E1254 Guide for Storage of Radiographs and Unexposed Industrial Radiographic Films
E1316 Terminology for Nondestructive Examinations
E1411 Practice for Qualification of Radioscopic Systems
ASME Standard
SectionV,Article2, Mandatory Appendix VI, Digital Image Acquisition, Display, Interpretation and Storage for Nuclear Applications Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://www.asme.org.Keywords
density contrast sensitivity; digitization; line pairs; reference radiograph; spatial linearity; spatial resolution; system evaluation; target; X-ray; [fixwid]> Contrast manipulation/sensitivity; Digital electronic data; Radiographic examination; Reference radiographs; Spatial linearity/resolution; X-ray monitoring/processing
ICS Code
ICS Number Code 11.040.50 (Radiographic equipment)
DOI: 10.1520/E1936-97
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