ASTM C1030-10(2018)
(Test Method)Standard Test Method for Determination of Plutonium Isotopic Composition by Gamma-Ray Spectrometry
Standard Test Method for Determination of Plutonium Isotopic Composition by Gamma-Ray Spectrometry
SIGNIFICANCE AND USE
4.1 The determination of plutonium isotopic composition by gamma-ray spectrometry is a nondestructive technique and when used with other nondestructive techniques, such as calorimetry (Test Method C1458) or neutron counting (Test Methods C1207, C1316, C1493, and C1500), can provide a wholly nondestructive plutonium assay necessary for material accountancy and safeguards needs.
4.2 Because gamma-ray spectrometry systems are typically automated, the routine use of the test method is fast, reliable, and is not labor intensive. The test method is nondestructive, requires no sample preparation, and does not create waste disposal problems.
4.3 This test method assumes that all plutonium in the measured item has the same isotopic distribution, often called isotopic homogeneity (see 7.2.4 and 7.2.5).
4.4 The 242Pu abundance is not measured by this test method and must be estimated from isotopic correlation techniques, stream averages, historical information, or other measurement techniques.
4.5 Americium-241 is a daughter product of 241Pu. The 241Am/239Pu atom ratio can also be determined by means of this test method (assuming a homogeneous isotopic distribution of plutonium and 241Am). The determination of the 241Am/239Pu atom ratio is necessary for the correct interpretation of a calorimetric heat measurement.
4.6 The isotopic composition of a given batch or item of plutonium is an attribute of that item and, once determined, can be used in subsequent inventory measurements to verify the identity of an item within the measurement uncertainties.
4.7 The method can also measure the ratio of other gamma-emitting isotopes to plutonium assuming they have the same spatial distribution as the plutonium in the item. Some of these “other” gamma-emitting isotopes include isotopes of uranium, neptunium, curium, cesium, and other fission products. The same methods of this standard can be used to measure the isotopic composition of uranium in items containing only u...
SCOPE
1.1 This test method is applicable to the determination of isotopic abundances in isotopically homogeneous plutonium-bearing materials. This test method may be applicable to other plutonium-bearing materials, some of which may require modifications to the described test method.
1.2 The procedure is applicable to items containing plutonium masses ranging from a few tens of milligrams up to the maximum plutonium mass allowed by criticality limits.
1.3 Measurable gamma ray emissions from plutonium cover the energy range from approximately 30 keV to above 800 keV. K-X-ray emissions from plutonium and its daughters are found in the region around 100 keV. This test method has been applied to all portions of this broad spectrum of emissions.
1.4 The isotopic abundance of the 242Pu isotope is not directly determined because it has no useful gamma-ray signature. Isotopic correlation techniques may be used to estimate its relative abundance Refs (1) and (2).2
1.5 This test method has been demonstrated in routine use for isotopic abundances ranging from 99 to 239Pu. This test method has also been employed for isotopic abundances outside this range.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 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.
1.8 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
Relations
Standards Content (Sample)
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: C1030 − 10 (Reapproved 2018)
Standard Test Method for
Determination of Plutonium Isotopic Composition by
1
Gamma-Ray Spectrometry
This standard is issued under the fixed designation C1030; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This test method is applicable to the determination of
mendations issued by the World Trade Organization Technical
isotopic abundances in isotopically homogeneous plutonium-
Barriers to Trade (TBT) Committee.
bearing materials. This test method may be applicable to other
plutonium-bearing materials, some of which may require
2. Referenced Documents
modifications to the described test method.
3
2.1 ASTM Standards:
1.2 The procedure is applicable to items containing pluto-
C697Test Methods for Chemical, Mass Spectrometric, and
nium masses ranging from a few tens of milligrams up to the
Spectrochemical Analysis of Nuclear-Grade Plutonium
maximum plutonium mass allowed by criticality limits.
Dioxide Powders and Pellets
1.3 Measurablegammarayemissionsfromplutoniumcover
C698Test Methods for Chemical, Mass Spectrometric, and
theenergyrangefromapproximately30keVtoabove800keV.
Spectrochemical Analysis of Nuclear-Grade Mixed Ox-
K-X-rayemissionsfromplutoniumanditsdaughtersarefound
ides ((U, Pu)O )
2
in the region around 100 keV. This test method has been
C982 Guide for Selecting Components for Energy-
applied to all portions of this broad spectrum of emissions.
Dispersive X-Ray Fluorescence (XRF) Systems (With-
242
1.4 The isotopic abundance of the Pu isotope is not
4
drawn 2008)
directly determined because it has no useful gamma-ray
C1207Test Method for Nondestructive Assay of Plutonium
signature. Isotopic correlation techniques may be used to
in Scrap and Waste by Passive Neutron Coincidence
2
estimate its relative abundance Refs (1) and (2).
Counting
1.5 This test method has been demonstrated in routine use
C1316Test Method for Nondestructive Assay of Nuclear
239
for isotopic abundances ranging from 99 to <50% Pu. This
Material in Scrap and Waste by Passive-Active Neutron
test method has also been employed for isotopic abundances
252
Counting Using Cf Shuffler
outside this range.
C1458Test Method for NondestructiveAssay of Plutonium,
241
1.6 The values stated in SI units are to be regarded as
Tritium and Am by Calorimetric Assay
standard. No other units of measurement are included in this
C1493Test Method for Non-Destructive Assay of Nuclear
standard.
Material in Waste by Passive and Active Neutron Count-
1.7 This standard does not purport to address all of the ing Using a Differential Die-Away System (Withdrawn
4
safety concerns, if any, associated with its use. It is the
2018)
responsibility of the user of this standard to establish appro-
C1500Test Method for Nondestructive Assay of Plutonium
priate safety, health, and environmental practices and deter-
by Passive Neutron Multiplicity Counting
mine the applicability of regulatory limitations prior to use.
E181Test Methods for Detector Calibration andAnalysis of
1.8 This international standard was developed in accor-
Radionuclides
dance with internationally recognized principles on standard-
E267Test Method for Uranium and Plutonium Concentra-
tions and Isotopic Abundances
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC26onNuclear
Fuel Cycle and is the direct responsibility of Subcommittee C26.10 on Non
3
Destructive Assay. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2018. Published April 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1984. Last previous edition approved in 2010 as C1030–10. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1030-10R18. the ASTM website.
2 4
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof The last approved version of this historical standard is referenced on
this standard. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1030 − 10 (2018)
5
2.2 ANSI Standards: Methods C1207, C1316, C1493, and C1500), can provide a
ANSI/IEEE Std 325-1996IEEE Standard Test Procedures wholly non
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.