Stancalie Andrei, Esposito Flavio, Neguț Constantin Daniel, Ghena Marian, Mihalcea Razvan, Srivastava Anubhav, Campopiano Stefania, Iadicicco Agostino
National Institute Laser, Plasma and Radiation Physics, Center for Advanced Laser Technologies (CETAL), 409 Atomiştilor St., RO-077125 Măgurele, Romania.
Department of Engineering, University of Naples "Parthenope", Centro Direzionale Isola C4, 80143 Naples, Italy.
Sensors (Basel). 2020 Jul 24;20(15):4129. doi: 10.3390/s20154129.
In this work, we present a new setup for real-time investigations of optical fibers and optical fiber sensors while being subjected to gamma-rays. The investigation of the radiation effects on novel or well-assessed sensing devices has attracted a lot of interest, however, the facilities required to do this (when available) are barely accessible to the device to be characterized. In order to reduce the limitations of these types of experiments and ensure a highly controlled environment, we implemented a configuration that permits the on-line testing of optical components inside a Co-60 gamma chamber research irradiator. To show the advantages of this new approach, we present a case study that compares an arc-induced optical fiber long period grating (LPG) irradiated in a gamma chamber with the same type of grating irradiated with gamma-rays from a Co-60 industrial irradiator. In order to better understand the effects of radiation on such components and their behavior in radiation environments, we focus on the homogeneity of the radiation field and parameter customizability as well as the high reproducibility of the experiments.
在这项工作中，我们展示了一种用于实时研究光纤及光纤传感器在伽马射线作用下情况的新装置。对新型或经过充分评估的传感设备的辐射效应研究引起了广泛关注，然而，进行此类研究所需的设施（即便有），待测设备也很难使用到。为了减少这类实验的局限性并确保高度可控的环境，我们采用了一种配置，允许在钴 - 60伽马室研究辐照器内对光学组件进行在线测试。为了展示这种新方法的优势，我们给出一个案例研究，比较在伽马室内辐照的电弧诱导光纤长周期光栅（LPG）与用钴 - 60工业辐照器的伽马射线辐照的同类型光栅。为了更好地理解辐射对此类组件的影响及其在辐射环境中的行为，我们着重关注辐射场的均匀性、参数可定制性以及实验的高重现性。
