63-MeV Proton Beam Profile Monitoring With Radioluminescent Ce-Doped Optical Fiber Sensor

We investigated the potential of an optical material (Ce-doped silica rod of ~0.5 mm in diameter and ~1 cm in length) developed by a sol-gel process to perform in situ proton beam profile measurement through the monitoring of its visible radioluminescence (RIL) features peaking around 480 nm. Variou...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2024-05, Vol.71 (5), p.1168-1174
Main Authors: Vidalot, J., Morana, A., Duhamel, O., Hoehr, C., El Hamzaoui, H., Boukenter, A., Bouwmans, G., Cassez, A., Capoen, B., Trinczek, M., Ouerdane, Y., Paillet, P., Gaillardin, M., Bouazaoui, M., Girard, S.
Format: Article
Language:English
Subjects:
Beam monitoring
Cerium
Collimators
Doped fibers
Engineering Sciences
Environmental Engineering
Environmental Sciences
Instrumentation and Detectors
Materials
Medical treatment
Monitoring
Optical fiber sensors
Optical fibers
Optical materials
Particle beams
Physics
Profile measurement
Proton beams
Protons
Radiation effects
radioluminescence (RIL)
Silica
Sol-gel processes
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Summary:We investigated the potential of an optical material (Ce-doped silica rod of ~0.5 mm in diameter and ~1 cm in length) developed by a sol-gel process to perform in situ proton beam profile measurement through the monitoring of its visible radioluminescence (RIL) features peaking around 480 nm. Various test configurations (collimator sizes and varying distances from the collimators) have been performed to assess the sensor performances at the TRIUMF facility in Vancouver offering a 63-MeV proton beam. The obtained results are promising, showing their potential to characterize the flux and beam profile at this facility offering radiation testing capabilities or medical treatments. The reported performances could be improved by pre-irradiating the probe sample to reduce the observed slight bright burn effect on the quality of the profile measurements. These results open the way to most advanced sensors' architecture such as ribbons of optical fibers drawn from this sol-gel rod, to acquire in one step the complete beam profile.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2023.3346321