A novel Lab-on-Fiber Radiation Dosimeter for Ultra-high Dose Monitoring.

ABSTRACT: In this work, we report on the first demonstration of Lab on Fiber (LOF) dosimeter for ionizing radiation monitoring at ultra-high doses. The new dosimeter consists in a metallo-dielectric resonator at sub-wavelength scale supporting localized surface plasmon resonances realized on the optical fiber (OF) tip. The resonating structure involves two gold gratings separated by a templated dielectric layer of poly(methyl methacrylate) (PMMA). Two LOF prototypes have been manufactured and exposed at the IRRAD Proton Facility at CERN in Geneva to 23 GeV protons for a total fluence of 0.67 × 10¹⁶ protons/cm², corresponding to an absorbed dose of 1.8 MGy. Experimental data demonstrated the "radiation resistance" feature of the LOF devices and a clear dependence of the reflecte

SUBMITTER: Quero G 

PROVIDER: S-EPMC6294823 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature