1、Designation: E2738 131E2738 18Standard Practice forDigital Imaging and Communication in NondestructiveEvaluation (DICONDE) for Computed Radiography (CR) TestMethods1This standard is issued under the fixed designation E2738; the number immediately following the designation indicates the year oforigin
2、al adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTETable 4 was corrected editorially in January 2014.1. Scope*1.1 This pra
3、ctice facilitates the interoperability of computed radiography (CR) imaging and data acquisition equipment byspecifying image data transfer and archival storage methods in commonly accepted terms. This practice is intended to be used inconjunction with Practice E2339 on Digital Imaging and Communica
4、tion in Nondestructive Evaluation (DICONDE). PracticeE2339 defines an industrial adaptation of the NEMA Standards Publication titled Digital Imaging and Communications inMedicine (DICOM, see http:/medical.nema.org), an international standard for image data acquisition, review, storage and archivalst
5、orage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display andanalysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a datadictionary and a set of information modules that are a
6、pplicable to all NDE modalities. This practice supplements Practice E2339by providing information object definitions, information modules and a data dictionary that are specific to computed radiographytest methods.1.2 This practice has been developed to overcome the issues that arise when analyzing
7、or archiving data from CR test equipmentusing proprietary data transfer and storage methods.As digital technologies evolve, data must remain decipherable through the useof open, industry-wide methods for data transfer and archival storage. This practice defines a method where all standard CRtechniqu
8、e parameters and test results are communicated and stored in a standard manner regardless of changes in digitaltechnology.1.3 This practice does not specify:1.3.1 A testing or validation procedure to assess an implementations conformance to the standard.1.3.2 The implementation details of any featur
9、es of the standard on a device claiming conformance.1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices eachclaiming DICONDE conformance.1.4 Although this practice contains no values that require units, it does describe methods t
10、o store and communicate data thatdo require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other unitsof measurement are included in this practice.1.5 This standard does not purport to address all of the safety concerns, if any, associated
11、 with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally
12、 recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E1316 Terminology
13、 for Nondestructive Examinations1 This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.11 on Digital Imagingand Communication in Nondestructive Evaluation (DICONDE).Current edition approved Dec. 15, 2013Nov. 1, 2
14、018. Published January 2014November 2018. Originally approved in 2010. Last previous edition approved in 20112013as E2738 - 11.E2738 - 1301. DOI: 10.1520/E2738-13E0110.1520/E2738-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.or
15、g. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit
16、may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at
17、the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E2339 Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)2.2 Other Documentation:National Electrical Manufacturers Association S
18、tandard for Digital Imaging and Communication in Medicine (DICOM), 2011.3. Terminology3.1 Definitions:3.1.1 Nondestructive evaluation terms used in this practice can be found in Terminology E1316.3.1.2 DICONDE terms used in this practice are defined in Practice E2339.4. Summary of Practice4.1 A fund
19、amental principle of DICONDE is the use of standard definitions and attribute formats for data communication andstorage. This means all systems that are DICONDE compliant use a common data dictionary and common communicationprotocols. To further standardization, the elements in the data dictionary a
20、re organized into common groups referred to asinformation modules. The data dictionary and information modules common to all NDE modalities are defined in Practice E2339.4.2 The data dictionary and information modules specified in Practice E2339 do not cover the information storage requirementsfor e
21、ach individual modality (CT, DR,DDA, CR, UT, etc.). Additions to the data dictionary and information modules are requiredto support the individual modalities. This practice contains the additions to the DICONDE data dictionary and information modulesnecessary for CR inspection.4.3 The highest organi
22、zational level in the DICONDE information model is the information object definition (IOD). Aninformation object definition is a collection of the information modules necessary to represent a set of test results from a specificmodality. This practice contains information object definitions for CR in
23、spection.5. Significance and Use5.1 Personnel that are responsible for the creation, transfer, and storage of computed radiography NDE data will use thispractice. This practice will define a set of information modules that along with the Practice E2339 and the DICOM standard willprovide a standard m
24、eans to organize CR inspection data. The CR inspection data may be displayed and analyzed on any devicethat conforms to the standard. Personnel wishing to view any CR inspection data stored in accordance with Practice E2339 mayuse this practice to help them decode and display the data contained in t
25、he DICONDE compliant inspection record.6. Information Object Definitions6.1 NDE Computed Radiography Image IOD Description:6.1.1 The NDE Computed Radiography (CR) Image Information Object Definition specifies an image that has been created bya computed radiography imaging device for NDE purposes. Th
26、e IOD definition will follow that for CR Images found in Part 3,Section A.2 of the DICOM standard except as noted in Table 1. Table 1 is not stand-alone and must be used in conjunction withPart 3, Section A.2 of the DICOM standard to have a complete definition of the NDE CR information object.6.1.2
27、This IOD will use the Service-Object Pair (SOP) class for the CR IOD as defined in Part 4, Section B.5 of the DICOMstandard.7. Information Modules7.1 NDE CR Series Module:7.1.1 Table 2 specifies the attributes that describe NDE Computed Radiography images.7.2 NDE Source Radiography Module:7.2.1 Tabl
28、e 3 specifies the attributes that describe NDE Source Radiography Module.TABLE 1 NDE CR Image Information Object DefinitionDICOM Module DICONDE Module Reference UsagePatient Component E2339, Section 7 MClinical Trial Subject Not ApplicableGeneral Study Component Study E2339, Section 7 MPatient Study
29、 Not ApplicableClinical Trial Study Not ApplicableGeneral Series Component Series E2339, Section 7 MCR Series NDE CR Series Section 7.1 MClinical Trial Series Not Applicable UGeneral Equipment NDE Equipment E2339, Section 7 MContrast/bolous Not Applicable UCR image NDE CR image Section 7.3 MNDE Indi
30、cation E2339, Section 7 UNDE Geometry E2339, Section 7 UNDE Source Radiography Section 7.2 UE2738 1827.3 NDE CR Image Module:7.3.1 Table 4 specifies the attributes that describe NDE CR Image Module.8. Keywords8.1 Computed Radiography; CR; database; DICOM; DICONDE; digital data storage; digital data
31、transmission; file formatTABLE 2 NDE CR Series Module AttributesAttribute Name Tag VR VM Type DescriptionPart Examined (0018,0015) CS 1 2 Text description of the part examinedView Position (0018,5101) CS 1 2 Radiographic view. Defined Terms:FA = Forward/AftAF = Aft/ForwardLL = Left LateralRL = Right
32、 LateralRLD = Right Lateral DecubitusLLD = Left Lateral DecubitusFilter Type (0018,1160) SH 1 3 Label for the type of filter inserted into the x-raybeamCollimator/grid Name (0018,1180) SH 1 3 Label describing any grid inserted.Focal Spot (0018,1190) DS 1-n 3 Size of the focal spot in mm. For devices
33、 withvariable focal spot or multiple focal spots, smalldimension followed by large dimension.Plate Type (0018,1260) SH 1 3 Label of the type of storage phosphor platesused in this seriesPhosphor Type (0018,1261) LO 1 3 Label of type of phosphor on the platesTABLE 3 NDE Source Radiography Module Attr
34、ibutesAttribute Name Tag VR VM Type DescriptionSource Type (300A,0214) CS 1 1 Type of Source: Defined Terms:POINTLINECYLINDERSPHERESource Manufacturer (300A,0216) LO 1 3 Manufacturer of SourceActive Source Diameter (300A,0218) DS 1 3 Diameter of active Source (mm)Active Source Length (300A,0220) DS
35、1 3 Length of active Source (mm)Material ID (300A,00E1) DS 1 3 User-supplied identifier for encapsulation material ofactive SourceSource EncapsulationNominal Thickness(300A,0222) DS 1 3 Nominal thickness of wall of encapsulation (mm)Source EncapsulationNominal Transmission(300A,0224) DS 1 3 Nominal
36、transmission through wall of encapsulation(between 0 and 1)Source Isotope Name (300A,0226) LO 1 1 Name of IsotopeSource Isotope Half-Life (300A,0228) DS 1 1 Half-life of Isotope (days)Source Strength Units (300A,0229) CS 1 1C Measurement of Source StrengthRequired if the source is not a gamma-emitti
37、ng (photon)source. May be present otherwise.Enumerate values:AIR Kerma Rate = Air Kerma Rate if Source is Gamma-emitting IsotopeReference Air Kerma Rate (300A,022A) 1 1 Air Kerma Rate in air of Isotope specified at SourceStrenth Reference Date (300A,022C) and SourceStrength Reference Time (300A,022E
38、) (in Gy h-1 at 1m). Values shall be zero for non-gamma sources.Source Strength (300A,022B) 1 1C Source Strength of Isotope at Source Strength ReferenceDate (300A,022C) and Source Strength Reference Time(300A,022E), in units specified in Source Strength Units(300A,0229).Required if the source is not
39、 a gamma-emitting (photon)source.Source Strength ReferenceDate(300A,022C) DT 1 1 Reference date for Reference Air Kerma Rate(300A,022A) or Source Strength (300A,022B) of Isotope.Source Strength ReferenceTime(300A,022E) TM 1 1 Reference time for Reference Air Kerma Rate(300A,022A) or Source Strength
40、(300A,022B) of Isotope.E2738 183TABLE 4 NDE CR Image Module AttributesAttribute Name Tag VR VM Type DescriptionPhotometric Interpretation (0028,0004) CS 1 1 Specifies the intended interpretation of the pixel data.Shall have one of the following enumerated values:MONOCHROME 1MONOCHROME 2KVP (0018,006
41、0) DS 1 3 Peak kilo voltage output of the x-ray generator used.Plate ID (0018,1004) LO 1 3 The ID or serial number of the sensing plate upon whichthe image was acquired.Distance Source to Detector (0018,1110) DS 1 3 Distance in mm from source to detector centerDistance Source to Part (0018,1111) DS
42、1 3 Distance in mm from the source to isocenter (center offield of view).Exposure Time (0018,1150) IS 1 3 Time of X-ray exposure in msecX-ray Tube Current (0018,1151) IS 1 3 X-ray Tube Current in mAExposure (0018,1152) IS 1 3 The exposure expressed in mAs, for example calculatedfrom Exposure Time an
43、d X-ray Tube Current.Exposure in As (0018,1153) IS 1 3 The exposure expressed in As, for example calculatedfrom Exposure Time and X-ray Tube Current.Image Pixel Spacing (0018,1164) DS 2 3 Physical distance measured at the front plane of theImage Receptor housing between the center of eachpixel. Spec
44、ified by a numeric pair row spacing value(delimiter) column spacing value in mm.In the case of CR, the front plane is defined to be theexternal surface of the CR plate closest to the part andradiation source.Generator Power (0018,1170) IS 1 3 Power in kW to the X-ray generator.Acquisition DeviceProc
45、essing Description(0018,1400) LO 1 3 Describes device-specific processing associated with theimage.Acquisition DeviceProcessing Code(0018,1401) LO 1 3 Code representing the device-specific processingassociated with the image.Cassette Orientation (0018,1402) CS 1 3 Orientation of the cassette used to
46、 properly position theimage for display. Enumerated Values:LANDSCAPEPORTRAITCassette Size (0018,1403) CS 1 3 Size of the cassette. Defined terms18 cm 24 cm8 in 10 in24 cm 30 cm10 in 12 in30 cm 35 cm30 cm 40 cm11 in 14 in35 cm 35 cm14 in 14 in35 cm 43 cm14 in 17 inExposures on Plate (0018,1404) US 1
47、3 Total number of X-ray exposures that have been madeon the plate identified in Plate ID. (0018,1004)Relative X-ray Exposure (0018,1405) IS 1 3 Relative X-ray exposure on the plate. Meaning of valuesis implementation specific.Sensitivity (0018,6000) 1 3 Read out sensitivity.X-ray Tube Current in A (
48、0018,8151) DS 1 3 X-ray Tube Current in A.Image Quality Indicator Type (0014,40A0) LO 1-n 3 Description of the type of Image Quality Indicator used.Image Quality IndicatorMaterial(0014,40A1) LO 1-n 3 Description of the material used to manufacture theImage Quality Indicator.Image Quality Indicator S
49、ize (0014,40A2) LO 1-n 3 Designation for the size of the Image Quality Indicatorused. A typical size designation is 2-2T where the firstnumber indicates that the IQI thickness is two percent ofthe test material thickness and second number definesthe hole diameter as twice the IQI thickness.E2738 184SUMMARY OF CHANGESCommittee E07 has identified the location of selected changes to this standard since the last issue(E2738 - 11E2738 - 131) that may impact the use of this standard. (December 15, 2013)(Nov. 1, 2018)(1) Added Section Corrected 7
