1、Designation:E125509Standard Practice forRadioscopy1This standard is issued under the fixed designation E1255;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 indicates the year of last
2、 reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice2provides application details for radio-scopic examination using penetrating radiation.This includesdynamic radioscopy and for the purposes of this practice,radioscopy where
3、there is no motion of the object duringexposure(referred to as static radioscopic imaging)both usingan analog component such as an electro-optic device or analogcamera.Since the techniques involved and the applications forradioscopic examination are diverse,this practice is not in-tended to be limit
4、ing or restrictive,but rather to address thegeneral applications of the technology and thereby facilitate itsuse.Refer to Guides E94 and E1000,Terminology E1316,Practice E747,Practice E1025,Test Method E2597,and Fed.Std.Nos.21 CFR 1020.40 and 29 CFR 1910.96 for a list ofdocuments that provide additi
5、onal information and guidance.1.2 The general principles discussed in this practice applybroadly to penetrating radiation radioscopic systems.However,this document is written specifically for use with X-ray andgamma-ray systems.Other radioscopic systems,such as thoseemploying neutrons,will involve e
6、quipment and applicationdetails unique to such systems.1.3 This standard does not purport to address all of thesafety concerns,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
7、 regulatory limitations prior to use.For specific safetystatements,see Section 8 and Fed.Std.Nos.21 CFR 1020.40and 29 CFR 1910.96.2.Referenced Documents2.1 ASTM Standards:3E94 Guide for Radiographic ExaminationE543 Specification for Agencies Performing NondestructiveTestingE747 Practice for Design,M
8、anufacture and Material Group-ing Classification of Wire Image Quality Indicators(IQI)Used for RadiologyE1000 Guide for RadioscopyE1025 Practice for Design,Manufacture,and MaterialGrouping Classification of Hole-Type Image Quality In-dicators(IQI)Used for RadiologyE1316 Terminology for Nondestructiv
9、e ExaminationsE1411 Practice for Qualification of Radioscopic SystemsE1742 Practice for Radiographic ExaminationE2002 Practice for Determining Total Image Unsharpness inRadiologyE2597 Practice for Manufacturing Characterization of Digi-tal Detector Arrays2.2 ASNT Standard:4SNT-TC-1A Recommended Prac
10、tice for Personnel Qualifi-cation and Certification in Nondestructive TestingANSI/ASNT CP-189 Standard for Qualification and Certifi-cation of Nondestructive Testing Personnel2.3 Federal Standards:521 CFR 1020.40 Safety Requirements of Cabinet X-RaySystems29 CFR 1910.96 Ionizing Radiation2.4 Nationa
11、l Council on Radiation Protection and Measure-ment(NCRP)Standard:NCRP 49 Structural Shielding Design and Evaluation forMedical Use of X Rays and Gamma Rays of Energies Upto 10 MeV62.5 AIA Standard:NAS-410 NAS Certification and Qualification of Nonde-structive Test Personnel71This practice is under t
12、he 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 July 1,2009.Published August 2009.Originallyapproved in 1988.Last previous edition approved in 2002 as E1255-96(2002).DOI:1
13、0.1520/E1255-09.2For ASME Boiler and Pressure Vessel Code applications see related PracticeSE-1255 in Section II of that code.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refe
14、r to the standards Document Summary page onthe ASTM website.4Available fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.org.5Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelph
15、ia,PA19111-5098,http:/www.dodssp.daps.mil.6Available from NCRP Publications,7010 Woodmont Ave.,Suite 1016,Bethesda,MD 20814.7Available from Aerospace Industries Association of America,Inc.(AIA),1000Wilson Blvd.,Suite 1700,Arlington,VA22209-3928,http:/www.aia-aerospace.org.Copyright ASTM Internationa
16、l,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Summary of Practice3.1 Visual evaluation as well as computer-aided automatedradioscopic examination systems are used in a wide variety ofpenetrating radiation examination applications.Asimple visualevaluation radioscopic examination system might consist of aradiation source,a fluorescent screen viewed with an analogcamera,suitably enclosed in a radiation protective enclosureand a video display.At the other extre
