1.1 本规程描述了从探测器样本中感应的放射性中确定中子注量率、注量和能谱的程序。 1.2 本规程旨在确定与材料辐射效应相关的这些量。 1.3 关于这些技术在反应堆容器监督中的应用，另见试验方法 E1005年 . 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 注1: 以下ASTM试验方法中给出了单个探测器的详细方法: E262 , E263 , E264页 , E265 , E266 , E343页 , E393 , E481 , E523 , E526 , E704 , E705 和 E854 . ====意义和用途====== 5.1 嬗变过程- 中子轰击材料的效果取决于中子的能量；因此，确定中子注量的能量分布以及总注量非常重要。

1.1 This practice describes 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 E1005 . 1.4 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. Note 1: Detailed methods for individual detectors are given in the following ASTM test methods: E262 , E263 , E264 , E265 , E266 , E343 , E393 , E481 , E523 , E526 , E704 , E705 , and E854 . ====== Significance And Use ====== 5.1 Transmutation Processes— The effect on materials of bombardment by neutrons depends on the energy of the neutrons; therefore, it is important that the energy distribution of the neutron fluence, as well as the total fluence, be determined.