Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

SIGNIFICANCE AND USE
5.1 The BPI is designed to yield quantitative information concerning neutron beam and image system parameters that contribute to film exposure and, thereby, affect overall image quality. For proper measurements of film exposure due to the neutron beam constituents, the BPI must be fabricated in accordance with this practice.  
5.2 This practice shall be followed for the fabrication of all Beam Purity Indicators to be used with Test Method E545 to determine image quality in direct thermal neutron radiography.
SCOPE
1.1 This practice covers the material and fabrication of a Beam Purity Indicator (BPI), which can be used to determine the relative quality of radiographic images produced by direct, thermal neutron radiographic examination.  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

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Publication Date
31-May-2020
Current Stage
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E2003 − 20
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
1
Indicators
This standard is issued under the fixed designation E2003; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Practice
1.1 This practice covers the material and fabrication of a
4.1 The BPI is used for quantitative determination of
Beam Purity Indicator (BPI), which can be used to determine
thermal neutron radiographic quality. It consists of a polytet-
the relative quality of radiographic images produced by direct,
rafluoroethylene block containing two boron nitride disks, two
thermal neutron radiographic examination. lead disks, and two cadmium or gadolinium wires. A key
feature of the device is the ability to make visual analysis of its
1.2 Units—The values stated in SI units are to be regarded
image for subjective quality information. Densitometric mea-
as standard. No other units of measurement are included in this
surements of the image of the device permit quantitative
standard.
determination of radiographic contrast, low-energy photon
1.3 This standard does not purport to address all of the
contribution, pair production contribution, image unsharpness,
safety concerns, if any, associated with its use. It is the
and information regarding film and processing quality.
responsibility of the user of this standard to establish appro-
4.2 Neutron radiography practices are discussed in Guide
priate safety, health, and environmental practices and deter-
E748.
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
5. Significance and Use
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.1 The BPI is designed to yield quantitative information
Development of International Standards, Guides and Recom-
concerning neutron beam and image system parameters that
mendations issued by the World Trade Organization Technical
contribute to film exposure and, thereby, affect overall image
Barriers to Trade (TBT) Committee.
quality. For proper measurements of film exposure due to the
neutron beam constituents, the BPI must be fabricated in
2. Referenced Documents
accordance with this practice.
2
2.1 ASTM Standards:
5.2 This practice shall be followed for the fabrication of all
E543 Specification for Agencies Performing Nondestructive
Beam Purity Indicators to be used with Test Method E545 to
Testing
determine image quality in direct thermal neutron radiography.
E545 Test Method for Determining Image Quality in Direct
Thermal Neutron Radiographic Examination
6. Basis of Application
E748 Guide for Thermal Neutron Radiography of Materials
E1316 Terminology for Nondestructive Examinations
6.1 Qualification of Nondestructive Agencies—If specified
in the contractual agreement, NDT agencies shall be qualified
3. Terminology
and evaluated as described in Specification E543. The appli-
cable revision of Specification E543 shall be specified in the
3.1 Definitions—For definitions of terms used in this
contractual agreement.
practice, see Terminology E1316, Section H.
6.2 Procedures and Techniques—The procedures and tech-
niquestobeutilizedshallbeasdescribedinthispracticeunless
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
otherwisespecified.Specifictechniquesmaybespecifiedinthe
structive Testing and is the direct responsibility of Subcommittee E07.05 on
Radiology (Neutron) Method.
contractual agreement.
Current edition approved June 1, 2020. Published June 2020. Originally
6.3 Reporting Criteria/Acceptance Criteria—Reporting cri-
approved in 1998. Last previous edition approved in 2014 as E2003 – 10(2014).
DOI: 10.1520/E2003-20.
teria for the examination results shall be in accordance with
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Sections 9 and 10 unless otherwise specified. Acceptance
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
criteria, for example, for reference radiographs, shall be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specified in the contractual agreement.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2003 − 20
6.4 Reexamination of Repaired/Rew
...

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. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: E2003 − 10 (Reapproved 2014) E2003 − 20
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
1
Indicators
This standard is issued under the fixed designation E2003; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers the material and fabrication of a Beam Purity Indicator (BPI), which can be used to determine the
relative quality of radiographic images produced by direct, thermal neutron radiographic examination.
1.2 Units—The values stated in SI units are regarded to be standard.regarded as standard. No other units of measurement are
included in this standard.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E543 Specification for Agencies Performing Nondestructive Testing
E545 Test Method for Determining Image Quality in Direct Thermal Neutron Radiographic Examination
E748 Guide for Thermal Neutron Radiography of Materials
E1316 Terminology for Nondestructive Examinations
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, see Terminology E1316, Section H.
4. Summary of Practice
4.1 The BPI is used for quantitative determination of thermal neutron radiographic quality. It consists of a polytetrafluoroeth-
ylene block containing two boron nitride disks, two lead disks, and two cadmium or gadolinium wires. A key feature of the device
is the ability to make visual analysis of its image for subjective quality information. Densitometric measurements of the image of
the device permit quantitative determination of radiographic contrast, low-energy photon contribution, pair production
contribution, image unsharpness, and information regarding film and processing quality.
4.2 Neutron radiography practices are discussed in PracticeGuide E748.
5. Significance and Use
5.1 The BPI is designed to yield quantitative information concerning neutron beam and image system parameters that contribute
to film exposure and, thereby, affect overall image quality. For proper measurements of film exposure due to the neutron beam
constituents, the BPI must be fabricated in accordance with this practice.
1
This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.05 on Radiology
(Neutron) Method.
Current edition approved Oct. 1, 2014June 1, 2020. Published November 2014June 2020. Originally approved in 1998. Last previous edition approved in 20102014 as
E2003 - 10.E2003 – 10(2014). DOI: 10.1520/E2003-10R14.10.1520/E2003-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2003 − 20
5.2 This practice shall be followed for the fabrication of all Beam Purity Indicators to be used with Test Method E545 to
determine image quality in direct thermal neutron radiography.
6. Basis of Application
6.1 Qualification of Nondestructive Agencies—If specified in the contractual agreement, NDT agencies shall be qualified and
evaluated as described in PracticeSpecification E543. The applicable revision of PracticeSpecification E543 shall be specified in
the contractual agreement.
6.2 Procedures and Techniques—The procedures and techniques to be utilized shall be as described in this practice unless
otherwise specified. Specific techniques may be specified in the contractual agreement.
6.3 Reporting Criteria/Acceptance Criter
...

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