ASTM-E266 2002

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E266-02 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum

Published By	Publication Date	Number of Pages
ASTM	2002	3

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Description

ASTM E266-02

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

ASTM E266

Scope

1.1 This test method covers procedures measuring reaction rates by the activation reaction ⁷Al(n,alpha)²⁴Na.

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, see Practice E 261).

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

1.4 Detailed procedures for other fast neutron detectors are referenced in Practice E 261.

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

Keywords

activation; activation reaction; aluminum; cross section; dosimetry; fast-neutron monitor; neutron metrology; pressure vessel surveillance; reaction rate

ICS Code

ICS Number Code 17.240 (Radiation measurements)

DOI: 10.1520/E0266-02

Additional information

Standard Title	E266-02 Standard Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Aluminum
Published Code	ASTM
Publication Date	2002
Pages Count	3