ASTM E261-16(2021)

Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques

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STANDARD published on 1.9.2021

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The information about the standard:

Designation standards: ASTM E261-16(2021)
Publication date standards: 1.9.2021
SKU: NS-1038172
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Radiation measurements Fissile materials

Annotation of standard text ASTM E261-16(2021) :

Keywords:

activation, fluence, neutron spectrum, radioactivation,, ICS Number Code 17.240 (Radiation measurements),27.120.30 (Fissile materials and nuclear fuel technology)

Additional information

Significance and Use

5.1?Transmutation ProcessesThe effect on materials of bombardment by neutrons depends on the energy of the neutrons; therefore, it is important that the energy distribution of the neutron fluence, as well as the total fluence, be determined.

1. Scope

1.1?This practice describes procedures for the determination of neutron fluence rate, fluence, and energy spectra from the radioactivity that is induced in a detector specimen.

1.2?The practice is directed toward the determination of these quantities in connection with radiation effects on materials.

1.3?For application of these techniques to reactor vessel surveillance, see also Test Methods E1005.

1.4?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.

Note 1:?Detailed methods for individual detectors are given in the following ASTM test methods: E262, E263, E264, E265, E266, E343, E393, E481, E523, E526, E704, E705, and E854.

1.5?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

E393-19	Standard Test Method for Measuring Reaction Rates by Analysis of Barium-140 From Fission Dosimeters
E264-19	Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Nickel
E266-23	Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
E265-15(2020)	Standard Test Method for Measuring Reaction Rates and Fast-Neutron Fluences by Radioactivation of Sulfur-32
E1018-20e1	Standard Guide for Application of ASTM Evaluated Cross Section Data File (Includes all amendments and changes 7/2/2020).
E2005-21	Standard Guide for Benchmark Testing of Reactor Dosimetry in Standard and Reference Neutron Fields
E722-19	Standard Practice for Characterizing Neutron Fluence Spectra in Terms of an Equivalent Monoenergetic Neutron Fluence for Radiation-Hardness Testing of Electronics
E844-18	Standard Guide for Sensor Set Design and Irradiation for Reactor Surveillance
E481-23	Standard Practice for Measuring Neutron Fluence Rates by Radioactivation of Cobalt and Silver
E523-21e1	Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Copper (Includes all amendments and changes 5/3/2021).
E526-22	Standard Test Method for Measuring Fast-Neutron Reaction Rates By Radioactivation of Titanium
E693-23	Standard Practice for Characterizing Neutron Exposures in Iron and Low Alloy Steels in Terms of Displacements Per Atom (DPA)
E704-19	Standard Test Method for Measuring Reaction Rates by Radioactivation of Uranium-238
E705-18	Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
E170-23	Standard Terminology Relating to Radiation Measurements and Dosimetry
E1005-21	Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance
E944-19	Standard Guide for Application of Neutron Spectrum Adjustment Methods in Reactor Surveillance
E854-19	Standard Test Method for Application and Analysis of Solid State Track Recorder (SSTR) Monitors for Reactor Surveillance
E181-23	Standard Guide for Detector Calibration and Analysis of Radionuclides in Radiation Metrology for Reactor Dosimetry
E262-17	Standard Test Method for Determining Thermal Neutron Reaction Rates and Thermal Neutron Fluence Rates by Radioactivation Techniques
E263-18	Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Iron
E343-96	Standard Test Method for Measuring Reaction Rates by Analysis of Molybdenum-99 Radioactivity From Fission Dosimeters (Withdrawn 2002)

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