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现行 ISO/ASTM 51631:2020
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Practice for use of calorimetric dosimetry systems for dose measurements and dosimetry system calibration in electron beams 电子束中剂量测量和剂量测量系统校准用量热剂量测量系统的使用规程
发布日期: 2020-02-25
本实践包括半绝热量热剂量测定系统的制备和使用,用于测量 当用电子辐照用于辐射处理应用时,吸收剂量和用于常规剂量测定系统的校准。 量热计或者由传送带传送通过扫描电子束,或者固定在加宽的 光束。 本文件是为在辐射处理中正确实施剂量测定提供建议的一组标准之一,并描述了实现符合ISO/ASTM实践要求的方法 52628用于量热剂量测定系统。它旨在与ISO/ASTM实践52628一起阅读。 根据影响量的复杂作用,本实施例中描述的量热计被归类为II型剂量计。参见ISO/ASTM实践52628。 本实践适用于能量范围为1.5至12兆电子伏的电子束。 吸收剂量范围取决于量热吸收材料以及照射和测量条件。最小剂量约为100 Gy,最大剂量约为50 kGy。 平均吸收剂量率范围一般应大于10Gy·s-1。 使用这些量热剂量测定系统的温度范围取决于量热材料的热阻、温度传感器的校准范围和测量装置的灵敏度。 本标准并不旨在解决与其使用相关的所有安全性问题(如果有)。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。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》中确立的国际公认的标准化原则制定的。
This practice covers the preparation and use of semiadiabatic calorimetric dosimetry systems for measurement of absorbed dose and for calibration of routine dosimetry systems when irradiated with electrons for radiation processing applications. The calorimeters are either transported by a conveyor past a scanned electron beam or are stationary in a broadened beam. This document is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing, and describes a means of achieving compliance with the requirements of ISO/ASTM Practice 52628 for a calorimetric dosimetry system. It is intended to be read in conjunction with ISO/ASTM Practice 52628. The calorimeters described in this practice are classified as Type II dosimeters on the basis of the complex effect of influence quantities. See ISO/ASTM Practice 52628. This practice applies to electron beams in the energy range from 1.5 to 12 MeV. The absorbed dose range depends on the calorimetric absorbing material and the irradiation and measurement conditions. Minimum dose is approximately 100 Gy and maximum dose is approximately 50 kGy. The average absorbed-dose rate range shall generally be greater than 10 Gy·s-1. The temperature range for use of these calorimetric dosimetry systems depends on the thermal resistance of the calorimetric materials, on the calibration range of the temperature sensor, and on the sensitivity of the measurement device. 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. 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.
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归口单位: ISO/TC 85
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