消费级电子子集成监视器的长期比较和性能研究
Z Daraktchieva1, C B Howarth1, J M Wasikiewicz1
1UK Health Security Agency, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom.
概括
消费者激素监测器显示的性能是可变的. 虽然有些人在高度下表现出色,但许多人在200 Bq m-3以下扎,显著的校准偏移突出了定期检查的必要性.
科学领域:
- 环境科学 环境科学
- 健康 物理 物理
- 辐射检测检测器可以检测到辐射.
背景情况:
- 暴露对健康构成重大风险,需要进行精确的监测.
- 消费级电子集监测器 (ERIM) 为广泛的检测提供了一个潜在的解决方案.
研究的目的:
- 评估七个消费级ERIM和被动蚀刻轨道探测器的性能.
- 为了将它们的准确性与在受控度下的参考仪器进行比较.
主要方法:
- 监视器和探测器被暴露在平均度为4781 Bq m−3和166 Bq m−3的子中,持续了三个月.
- 与Atmos 12DPX和AlphaGUARD P30相比,通过测量偏差,精度和测量误差来评估性能.
- 随着时间的推移,分析了校准因子,以评估稳定性.
主要成果:
- 英国HSA被动探测器在高暴露和低暴露时都表现出色 (误差<10%).
- 阿尔法E,金丝雀和拉蒙ERIM表现良好 (>4000 Bq m−3),但只有拉顿侦察家保持了<10%的误差低于200 Bq m−3.3的误差.
- 其他ERIM在较低度下显示出显著的性能下降 (20-50%的误差),校准因子在2019年至2023年之间变化为-46%至+63%.
结论:
- 消费级ERIM具有可变的准确性,特别是在较低的水平下.
- 定期校准和维护对于使用这些设备进行可靠的子监测至关重要.
- 被动蚀刻轨迹探测器和雷侦察家具有精确雷评估的前景.
相关概念视频
01:15High-Performance Liquid Chromatography: Types of Detectors
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte properties and...
01:30Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...