1.1 本试验方法涵盖了从电子直线加速器或闪光X射线机（FXR，电子束模式）发出的单个电子脉冲传输的总吸收剂量的量热测量。该测试方法设计用于能量范围为10至50 MeV的电子脉冲，仅适用于与所构造材料中的这些电子范围相比，热量计和待辐照试样都“薄”的情况。 1.2 所述程序可用于以下情况:( 1. )单次脉冲的剂量为5 Gy（matl） 2. [500 rd（matl）]或更高，或( 2. )与量热计的热时间常数相比，可以在短时间内传递多个较低剂量的脉冲。传输到材料的总吸收剂量的单位需要材料的规格，符号“matl”指的是量热计的活性材料。可接受监测的每个脉冲的最小剂量取决于特定测试的变量，包括脉冲率、脉冲均匀性和热量计的热时间常数。 1.3 直接测定制作热量计块的材料的总剂量。 其他材料中的总剂量可根据该测量值使用以下公式计算: 等式3 在本试验方法中提出。此类计算的需要和计算材料的选择应经试验各方同意。 1.4 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.5 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、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 有必要准确测量总吸收剂量，以确保所采集数据的有效性，对不同设施采集的数据进行比较，并验证部件或电路是否按照适用于其使用系统的辐射规范进行了测试。 5.2 量热法测量剂量的主要值是结果是绝对的。它们仅基于材料的物理性质，即量热计块材料的比热和所用热电偶的塞贝克电动势或所用热敏电阻的电阻温度系数（α），所有这些都可以通过非辐射测量建立。 5.3 该方法允许重复测量，而无需在测量之间进入辐射池。

1.1 This test method covers a calorimetric measurement of the total absorbed dose delivered by a single pulse of electrons from an electron linear accelerator or a flash X-ray machine (FXR, e-beam mode). The test method is designed for use with pulses of electrons in the energy range from 10 to 50 MeV and is only valid for cases in which both the calorimeter and the test specimen to be irradiated are “thin” compared to the range of these electrons in the materials of which they are constructed. 1.2 The procedure described can be used in those cases in which ( 1 ) the dose delivered in a single pulse is 5 Gy(matl) 2 [500 rd (matl)] or greater, or ( 2 ) multiple pulses of a lower dose can be delivered in a short time compared to the thermal time constant of the calorimeter. The units for the total absorbed dose delivered to a material require the specification of the material and the notation “matl” refers to the active material of the calorimeter. The minimum dose per pulse that can be acceptably monitored depends on the variables of the particular test, including pulse rate, pulse uniformity, and the thermal time constant of the calorimeter. 1.3 A determination of the total dose is made directly for the material of which the calorimeter block is made. The total dose in other materials can be calculated from this measured value using Eq 3 presented in this test method. The need for such calculations and the choice of materials for which calculations are to be made shall be subject to agreement by the parties to the test. 1.4 The values stated in SI units are to be regarded as the standard. The values in parenthesis are provided for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 An accurate measure of the total absorbed dose is necessary to ensure the validity of the data taken, to enable comparison to be made of data taken at different facilities, and to verify that components or circuits are tested to the radiation specification applied to the system for which they are to be used. 5.2 The primary value of a calorimetric method for measuring dose is that the results are absolute. They are based only on physical properties of materials, that is, the specific heat of the calorimeter-block material and the Seebeck EMF of the thermocouple used or the temperature coefficient of resistance (α) of the thermistor used, all of which can be established with non-radiation measurements. 5.3 The method permits repeated measurements to be made without requiring entry into the radiation cell between measurements.