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ASTM E264

2008 Edition, July 1, 2008

Complete Document

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

Includes all amendments and changes through Reapproval Notice , 2013


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Product Details:

  • Revision: 2008 Edition, July 1, 2008
  • Published Date: January 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 3
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:

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

This 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).

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

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

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

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