Radiation hardness of Ce-doped sol-gel silica fibers for high energy physics applications
Creators
- 1. University of Milano-Bicocca
- 2. Lawrence Berkeley National Laboratory
- 3. CERN
- 4. ENEA
- 5. Czech Technical University in Prague
Description
The results of irradiation tests on Ce-doped sol-gel silica
using x- and γ-rays up to 10 kGy are reported in order to
investigate the radiation hardness of this material for
high-energy physics applications. Sol-gel silica fibers with
Ce concentrations of 0.0125 and 0.05 mol. % are characterized
by means of optical absorption and attenuation length
measurements before and after irradiation. The two different
techniques give comparable results, evidencing the formation
of a main broad radiation-induced absorption band, peaking
at about 2.2 eV, related to radiation-induced color centers.
The results are compared with those obtained on bulk silica.
This study reveals that an improvement of the radiation
hardness of Ce-doped silica fibers can be achieved by reducing
Ce content inside the fiber core, paving the way for further
material development.
Files
Cova-Opt_Lett_2018.pdf
Files
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Additional details
Related works
- Cites
- 10.1364/OL.43.000903 (DOI)
Funding
- INTELUM – International and intersectoral mobility to develop advanced scintillating fibres and Cerenkov fibres for new hadron and jet calorimeters for future colliders 644260
- European Commission
- AIDA – Advanced European Infrastructures for Detectors at Accelerators 262025
- European Commission
- ASCIMAT – Increasing the scientific excellence and innovation capacity in Advanced Scintillation Materials of the Institute of Physics from the Czech Academy of Sciences 690599
- European Commission