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ASTM E 266 : 2023

Current

Current

The latest, up-to-date edition.

Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

27-06-2023

€49.35
Excluding VAT

Committee
E 10
DocumentType
Test Method
Pages
4
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This test method covers procedures measuring reaction rates by the activation reaction 27Al(n,α)24Na.

1.2This activation reaction is useful for measuring neutrons with energies above approximately 6.5 MeV and for irradiation times up to about two days (for longer irradiations, or when there are significant variations in reactor power during the irradiation, see Practice E261).

1.3With suitable techniques, fission-neutron fluence rates above 106 cm−2·s−1 can be determined.

1.4Detailed procedures for other fast neutron detectors are referenced in Practice E261.

1.5This 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.

1.6This 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.

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ASTM E 261 : 2016 : R2021 Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
ASTM E 798 : 2016 Standard Practice for Conducting Irradiations at Accelerator-Based Neutron Sources
ASTM E 720 : 2023 Standard Guide for Selection and Use of Neutron Sensors for Determining Neutron Spectra Employed in Radiation-Hardness Testing of Electronics

ASTM E 456 : 2013 : REV A : R2022 Standard Terminology Relating to Quality and Statistics
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