Radiation hardness of Ce-doped sol-gel silica fibers for High Energy Physics applications
Creators
- 1. University of Milano-Bicocca
- 2. CERN
- 3. ENEA
- 4. Czech Technical University
Description
The results of irradiation tests on Ce-doped sol-gel
silica using X- and g-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 mol% 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
Paper_OptLett_rev.pdf
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Additional details
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