ASTM E266-17 PDF

Scope: 1.1 This test method covers procedures measuring reaction rates by the activation reaction 27 Al(n,α)24 Na. 1.2 This activation reaction is useful for measuring neutrons with energies above approximately 6.5 MeV and for irradiation times up to about 2 days (for longer irradiations, or when there are significant variations in reactor power during the irradiation, see Practice E261). 1.3 With suitable techniques, fission-neutron fluence rates above 106 cm−2 ·s−1 can be determined. 1.4 Detailed procedures for other fast neutron detectors are referenced in Practice E261. 1.5 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. 1.6 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.

ASTM E266-17 Referenced Document

ASTM E1005 Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance, E 706(IIIA)
ASTM E1018 Standard Guide for Application of ASTM Evaluated Cross Section Data File, Matrix E 706 (IIB)
ASTM E170 Standard Terminology Relating to Radiation Measurements and Dosimetry
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E181 Standard Test Methods for Detector Calibration and Analysis of Radionuclides
ASTM E261 Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
ASTM E456 Standard Terminology for Relating to Quality and Statistics
ASTM E844 Standard Guide for Sensor Set Design and Irradiation for Reactor Surveillance, E 706(IIC)
ASTM E944 Standard Guide for Application of Neutron Spectrum Adjustment Methods in Reactor Surveillance, (IIA)

2023 ASTM E266-23 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
2017 ASTM E266-17 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
2011 ASTM E266-11 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
2007 ASTM E266-07 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
2002 ASTM E266-02 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
1992 ASTM E266-92(1996) Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
1992 ASTM E266-92 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum