加速器隧道用LED灯具的抗辐射加固
Radiation Hardening of LED Luminaires for Accelerator Tunnels
摘要：
本文总结了欧洲核子研究中心加速器综合体地下区域内用于疏散和应急响应的LED应急灯具的抗辐射加固所取得的进展。其目标是对现有的商用现货（COTS）应急灯具进行辐射加固，以最大限度地提高照明性能，同时不影响IEC 60598-2-22的合规性。系统级的方法已被采用，导致基于二极管桥的AC/DC功率转换器的发展。包括这种转换器设计的改进的COTS灯具已被辐照（使用钴-60源至100 kGy TID），随后的光度分析结果。根据令人鼓舞的测试结果，该电源转换器的参考设计已根据CERN开放硬件许可证发布，以鼓励制造商采用。本文的结论与未来的研究领域的兴趣，在进一步提高辐射硬度的LED应急照明加速器与高功率白光LED器件和相关的光学元件的组件级的详细研究。
英文摘要：
This paper summarises progress made towards the radiation hardening of LED emergency luminaires for evacuation and emergency response within the underground areas of the CERN accelerator complex. The objective has been to radiation harden existing Commercial Off-The-Shelf (COTS) emergency luminaires to maximise lighting performance, without compromising IEC 60598-2-22 compliance. A systems level approach has been adopted, leading to the development of a diode bridge based AC/DC power converter. Modified COTS luminaires including this converter design have been irradiated (to 100 kGy TID using a Cobalt-60 source), with results of a subsequent photometric analysis presented. Following encouraging tests results, a reference design for the power converter has been released under the CERN Open Hardware License to encourage manufacturer adoption. The paper concludes with areas of interest for future research in further improving the radiation hardness of LED emergency lighting for accelerators with detailed studies at the component level for high power white LED devices and associated optical components.
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