Name: ASTM E 264 : 2008 : R2013
Brand: ASTM
Price: 108.03 AUD

ASTM E 264 : 2008 : R2013

Superseded

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

Available format(s)

Hardcopy , PDF

Superseded date

13-05-2019

Language(s)

English

Published date

01-01-2013

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 12.02, 2015 Describes procedures for measuring reaction rates by the activation reaction [58]Ni(n,p)[58]Co.

1.1This test method covers procedures for measuring reaction rates by the activation reaction ⁵⁸Ni(n,p)⁵⁸Co.

Note 1—The burnup corrections were computed using effective burn-up cross sections of 1650 b for ⁵⁸Co(n,γ) and 1.4E5 b for ^58mCo(n,γ).

FIG. 1 R Correction Values as a Function of Irradiation Time and Neutron Flux

1.2This activation reaction is useful for measuring neutrons with energies above approximately 2.1 MeV and for irradiation times up to about 200 days in the absence of high thermal neutron fluence rates (for longer irradiations, see Practice E261).

1.3With suitable techniques fission-neutron fluence rates densities above 10⁷ cm⁻²·s⁻¹ can be determined.

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

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This 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 and health practices and determine the applicability of regulatory limitations prior to use.

Committee	E 10
DocumentType	Test Method
Pages	3
ProductNote	Reconfirmed 2013
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM E 264 : 2019
Supersedes	ASTM E 264 : 2008

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ASTM E 1005 : 2016 : REDLINE	Standard Test Method for Application and Analysis of Radiometric Monitors for Reactor Vessel Surveillance
ASTM E 261 : 2016 : REDLINE	Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
ASTM E 944 : 2013-01	GUIDE FOR APPLICATION OF NEUTRON SPECTRUM ADJUSTMENT METHODS IN REACTOR SURVEILLANCE