Cesium Lead Bromide-Coated Fiber Bragg Grating Sensors for Gamma Radiation Environments.

ABSTRACT: This study presents the development and characterization of CsPbBr₃ (CPB) and CPB-poly-(methyl methacrylate) (CPB-PMMA) composite coatings on Fiber Bragg Grating (FBGs)-based sensors for high-sensitivity gamma radiation sensing. CPB precipitates were synthesized using a solvent-based method and uniformly deposited onto the FBGs. The incorporation of PMMA into the CPB matrix enhanced both mechanical stability and adhesion to the FBG surface. Spectral analysis revealed significant Bragg wavelength shifts in response to gamma radiation exposures, indicating strain-optic variations induced by radiation-matter interactions. Comparative investigations between uncoated, CPB-coated, and CPB-PMMA-coated FBGs confirmed that the coatings significantly enhance strain sensitivity and stabili

SUBMITTER: Khan T 

PROVIDER: S-EPMC12290937 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature