ASTM-E261 › Historical Revision Information
Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
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1.1 This practice describes the general procedures for the determination of neutron fluence rate, fluence, and energy spectra from the radioactivity that is induced in a detector specimen.
1.2 The practice is directed toward the determination of these quantities in connection with radiation effects on materials.
1.3 For application of these techniques to reactor vessel surveillance, see also Test Methods E 1005.
1.4 This standard does not purport to address all 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.
Note 1-Detailed methods for individual detectors are given in the following ASTM test methods: E 262, E 263, E 264, E 265, E 266, E 343, E 393, E 418, E 481, E 523, E 526, E 704, E 705, and E 854.
Decay rates; Fluence; Lethargy; Neutron flux/fluence; Neutron radiation; Radiation exposure-nuclear materials/applications; Radioactivation-fast neutron flux; Resonance neutron flux; Spectral data; ICS Number Code 17.240 (Radiation measurements); 27.120.30 (Fissile materials and nuclear fuel technology)
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Dec. 10, 1996