1、Designation:E141116Standard Practice forQualification of Radioscopic Systems1This standard is issued under the fixed designation E1411;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses
2、indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice provides test and measurement details formeasuring the performance of X-ray and gamma ray radio-scopic systems.Radioscopic examination applications
3、 arediverse.Therefore,system configurations are also diverse andconstantly changing as the technology advances.1.2 This practice is intended as a means of initially quali-fying and re-qualifying a radioscopic system for a specifiedapplication by determining its performance level when oper-ated in a
4、static mode.System architecture including the meansof radioscopic examination record archiving and the methodfor making the accept/reject decision are also unique systemfeatures and their effect upon system performance must beevaluated.1.3 The general principles,as stated in this practice,applybroad
5、ly to transmitted-beam penetrating radiation radioscopysystems.Other radioscopic systems,such as those employingneutronsandComptonback-scatteredX-rayimagingtechniques,are not covered as they may involve equipment andapplication details unique to such systems.1.4 The user of this practice shall note
6、that energies higherthan 320keV may require different methods than those de-scribed within this practice.1.5 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety conc
7、erns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E747 Practice for Design,Manufacture and Ma
8、terial Group-ing Classification of Wire Image Quality Indicators(IQI)Used for RadiologyE1025 Practice for Design,Manufacture,and MaterialGrouping Classification of Hole-Type Image Quality In-dicators(IQI)Used for RadiologyE1165 Test Method for Measurement of Focal Spots ofIndustrial X-Ray Tubes by P
9、inhole ImagingE1255 Practice for RadioscopyE1316 Terminology for Nondestructive ExaminationsE1647 Practice for Determining Contrast Sensitivity in Ra-diologyE2002 Practice for Determining Total Image Unsharpnessand Basic Spatial Resolution in Radiography and Radios-copyE2698 Practice for Radiologica
10、l Examination Using DigitalDetector ArraysE2903 Test Method for Measurement of the Effective FocalSpot Size of Mini and Micro Focus X-ray Tubes2.2 ISO Standards:3ISO 192322 Step Hole Image Quality IndicatorISO 192325 Duplex Wire Image Quality Indicator2.3 Other Standards:4EN 4622 Step Hole IQI(withd
11、rawn and replaced with ISO192322)EN 4625 Duplex Wire IQI(withdrawn and replaced withISO 192325)1This practice is under the jurisdiction of ASTM Committee E07 on Nonde-structive Testing and is the direct responsibility of Subcommittee E07.01 onRadiology(X and Gamma)Method.Current edition approved Jun
12、e 1,2016.Published July 2016.Originally approvedin 1991.Last previous edition approved in 2009 as E1411-2009.DOI:10.1520/E1411-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,
13、refer to the standards Document Summary page onthe ASTM website.3Available from International Organization for Standardization(ISO),ISOCentral Secretariat,BIBC II,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,http:/www.iso.org.4Available from American National Standards Institute(ANS
14、I),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,see Terminology E1316.3.2 Definitions of Terms Speci
15、fic to This Standard:3.2.1 detector unsharpnessthe unsharpness of the detectorwith magnification 1(IQI in contact to surface of the activearea of the detector)measured as described in 7.12.The valueis given in line-pairs/mm(LP/mm)or m.Aconversion tablecan be found in Practice E2002.3.2.2 system unsh
16、arpnessthe unsharpness of the systemwith given magnification measured as described in 7.13.Thevalue is given in line-pairs/mm(LP/mm)or m.4.Summary of Practice4.1 This practice provides a standardized procedure for theinitial qualification and requalification of a radioscopic systemto establish radioscopic examination capabilities for a specifiedrange of applications.4.2 This practice is intended for use in association with astandardpracticegoverningtheuseofradioscopicexamination,such as Practice