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解惑“自由顶部西元”-环球时报

事关放射诊疗、核自由顶部西元能发电、深空探测等 电离辐射领域指南发布→

来源: 央广网
2024-11-05 22:06:13

最佳回答

“自由顶部西元”事关放射诊疗、核自由顶部西元能发电、深空探测等 电离辐射领域指南发布→

  记者自由顶部西元今天了解到,市场监管总局近日自由顶部西元印发首个全国电离辐射领域计量能力建设指导性文件《电离辐射量值传递溯源体系建设指南(试行)》(以下简称《指南》)。

  电离辐射在放射诊疗、核能发电、深空探测等领域均自由顶部西元发挥着重要作用。《指南》规划未来10年研制建立10项剂量、活度、中子计量基准,86项电离辐射领域计量标准,21种放射性核素活度标准物质。

  在核电产业发展方面,《指南》规划建立(250~600)kV X射线空气比释动能基准装置等计量基标准及放射性核素活度标准物质,可保障核反应堆内部及周边在线辐射监测设备、人员辐射防护监测设备正常运行,及时发现潜在异常情况。

  在放射诊疗方面,《指南》规划建立医用加速器电子水吸收剂量基准装置等计量基标准,确保放射影像与治疗设备诊断效果并符合辐射安全标准,通过准确监测和评估辐射剂量,提高放射诊疗质量。

  在地质勘探领域,《指南》规划建立放射性气体(氚、氪、氙、氡、碳)活度基准装置等计量基标准及放射性核素活度标准物质,保障辐射探测设备提供精准数据,提高资源勘探效率和准确性。

  在农业辐射应用领域,《指南》规划建立辐射加工水平电子束辐照装置剂量校准装置等计量标准及放射性核素活度标准物质,可确保辐射监测设备测量结果可靠性。 辐射技术可以对农产品进行辐射灭菌和安全检测,延长保质期,促进农产品质量控制,提高农业生产经济效益。

  在深空探测领域,《指南》电离辐射主要应用于监测宇宙辐射和空间环境,以保护航天器及其设备,以及宇航员的安全。由于深空中的辐射水平远高于地球表面,存在大量宇宙射线、太阳辐射、空间背景辐射等,宇航员在执行长期任务时面临较大风险,如辐射致癌、急性辐射病和其他健康问题。规划建立单能中子注量率基准组等计量基标准及放射性核素活度标准物质,可保障辐射探测设备提供精准数据,有效评估宇宙射线对航天器及航天员的潜在风险,为航天任务提供及时预警,为进一步理解和探索深空探测提供数据支撑。

  (总台央视记者 李晶晶)

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