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ASTM E496-96

Historical Revision

Standard Test Method for Measuring Neutron Fluence and Average Energy from <sup >3</sup>H(d,n)<sup>4</sup>He Neutron Generators by Radioactivation Techniques

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1.1 This test method covers a general procedure for the measurement of the fast-neutron fluence rate produced by neutron generators utilizing the H(d,n) He reaction. Neutrons so produced are usually referred to as 14-MeV neutrons, but range in energy depending on a number of factors.

1.2 This test method uses the following threshold activation reactions: in aluminum, 27 Al(n,[alpha]) Na and 27 Al(n,p) Mg; in nickel, Ni(n,p) Co and Ni(n,2n) Ni; and in copper, Cu(n,2n) Cu and Cu(n,2n) Cu. The neutron fluence rate is determined from induced foil activities (as measured by gamma spectrometry) and reaction cross-section data.

1.3 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.


SDO ASTM: ASTM International
Document Number E496
Publication Date Dec. 10, 1996
Language en - English
Page Count 11
Revision Level 96
Supercedes
Committee E10.07
Publish Date Document Id Type View
Jan. 1, 2014 E0496-14E01 Revision
Jan. 1, 2014 E0496-14 Revision
June 15, 2009 E0496-09 Revision
June 10, 2002 E0496-02 Revision
Dec. 10, 1996 E0496-96 Revision
July 1, 2022 E0496-14R22 Reaffirmation