ASTM E2003-10(2014)
(Practice)Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
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 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 The values stated in SI units are regarded to be standard.
1.3 This standard does not purport to address 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2003 − 10 (Reapproved 2014)
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
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 quality information. Densitometric measurements of the image
of the device permit quantitative determination of radiographic
1.1 This practice covers the material and fabrication of a
contrast, low-energy photon contribution, pair production
Beam Purity Indicator (BPI), which can be used to determine
contribution, image unsharpness, and information regarding
the relative quality of radiographic images produced by direct,
film and processing quality.
thermal neutron radiographic examination.
4.2 Neutron radiography practices are discussed in Practice
1.2 The values stated in SI units are regarded to be standard.
E748.
1.3 This standard does not purport to address the safety
5. Significance and Use
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
5.1 The BPI is designed to yield quantitative information
health practices and determine the applicability of regulatory
concerning neutron beam and image system parameters that
limitations prior to use.
contribute to film exposure and, thereby, affect overall image
quality. For proper measurements of film exposure due to the
2. Referenced Documents
neutron beam constituents, the BPI must be fabricated in
2.1 ASTM Standards:
accordance with this practice.
E543 Specification for Agencies Performing Nondestructive
5.2 This practice shall be followed for the fabrication of all
Testing
Beam Purity Indicators to be used with Method E545 to
E545 Test Method for Determining Image Quality in Direct
determine image quality in direct thermal neutron radiography.
Thermal Neutron Radiographic Examination
6. Basis of Application
E748 Practices for Thermal Neutron Radiography of Mate-
rials
6.1 Qualification of Nondestructive Agencies—If specified
E1316 Terminology for Nondestructive Examinations
in the contractual agreement, NDT agencies shall be qualified
and evaluated as described in Practice E543. The applicable
3. Terminology
revision of Practice E543 shall be specified in the contractual
3.1 Definitions— For definitions of terms used in this
agreement.
practice, see Terminology E1316, Section H.
6.2 Procedures and Techniques—The procedures and tech-
niquestobeutilizedshallbeasdescribedinthispracticeunless
4. Summary of Practice
otherwisespecified.Specifictechniquesmaybespecifiedinthe
4.1 The BPI is used for quantitative determination of
contractual agreement.
thermal neutron radiographic quality. It consists of a polytet-
6.3 Reporting Criteria/Acceptance Criteria—Reporting cri-
rafluoroethylene block containing two boron nitride disks, two
teria for the examination results shall be in accordance with
lead disks and two cadmium wires.Akey feature of the device
Sections 9 and 10 unless otherwise specified. Acceptance
is the ability to make visual analysis of its image for subjective
criteria, for example, for reference radiographs, shall be
specified in the contractual agreement.
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
6.4 Reexamination of Repaired/Reworked Items—
structive Testing and is the direct responsibility of Subcommittee E07.05 on
Reexamination of repaired/reworked items is not addressed in
Radiology (Neutron) Method.
this practice and, if required, shall be specified in the contrac-
Current edition approved Oct. 1, 2014. Published November 2014. Originally
approved in 1998. Last previous edition approved in 2010 as E2003 - 10. DOI:
tual agreement.
10.1520/E2003-10R14.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7. Beam Purity Indicator (BPI)
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 The BPI shall be constructed of polytetrafluoroethylene,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. cadmium, lead, and boron nitride.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E2003 − 10 (2014)
7.2 The construction and dimensions shall be as shown in will be flush and tight. The groove may extend to the outside
Fig. 1. edge of the unit (see Fig. 1).
8.1.6 Repeat the process on the opposite face, making
7.3 The BPI may be encased in a frame for easy mounting,
certain that the holes are not stacked upon each other.
but shall not be enclosed in a dust cover nor shall any material
8.1.7 Prepare a 4-mm diameter rod of boron nitride (a lathe
cover either sid
...
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 E2003 − 10 (Reapproved 2014)
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
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 The values stated in SI units are regarded to be standard.
1.3 This standard does not purport to address 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
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 Practices 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 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 Practice 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.
5.2 This practice shall be followed for the fabrication of all Beam Purity Indicators to be used with 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 Practice E543. The applicable revision of Practice E543 shall be specified in the contractual agreement.
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 Jan. 1, 2010Oct. 1, 2014. Published February 2010November 2014. Originally approved in 1998. Last previous edition approved in 20042010
as E2003 - 98E2003 - 10.(2004). DOI: 10.1520/E2003-10.10.1520/E2003-10R14.
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
E2003 − 10 (2014)
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 Criteria—Reporting criteria for the examination results shall be in accordance with Sections
9 and 10 unless otherwise specified. Acceptance criteria, for example, for reference radiographs, shall be specified in the
contractual agreement.
6.4 Reexamination of Repaired/Reworked Items—Reexamination of repaired/reworked items is not addressed in this practice
and, if required, shall be specified in the contractual agreement.
7. Beam Purity Indicator (BPI)
7.1 The BPI shall be constructed of polytetrafluoroethylene, cadmium, lead, and boron nitride.
7.2 The construction and dimensions shall be as shown in Fig. 1.
7.3 The BPI may be encased in a frame for easy mounting, but shall not be enclosed in a dust cover nor shall any material cover
either side of the BPI face.
7.4 Cadmium and lead shall be at least 99.9 % pure elemental material.
7.5 Boron nitr
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.