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Distributed Optical Fiber Radiation Sensing in the Proton Synchrotron Booster at CERN
/ Di Francesca, D (CERN) ; Toccafondo, I (CERN) ; Li Vecchi, G (CERN ; Lab. Hubert Curien, St. Etienne) ; Calderini, S (CERN) ; Girard, S (Lab. Hubert Curien, St. Etienne) ; Alessi, A (Lab. Hubert Curien, St. Etienne) ; Ferraro, R (CERN) ; Danzeca, S (CERN) ; Kadi, Y (CERN) ; Brugger, M (CERN)
In this paper, we report on the development and first deployment of a distributed optical fiber radiation sensor (DOFRS) for the online monitoring of radiation levels in the high-energy accelerator facilities of CERN. The DOFRS is composed of two basic parts: a set of suitably chosen radiation sensitive optical fibers (OFs), to be installed in the machine tunnel, and an optical time domain reflectometer (OTDR), to be installed in a radiation-free area. [...]
2018 - 6 p.
- Published in : IEEE Trans. Nucl. Sci. 65 (2018) 1639-1644
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Temperature Effect on the Radioluminescence of Differently Doped Silica-Based Optical Fibers
/ Kerboub, Nourdine (CERN ; CNES, Toulouse ; Lab. Hubert Curien, St. Etienne) ; Di Francesca, Diego (CERN) ; Morana, Adriana (Lab. Hubert Curien, St. Etienne) ; Hamzaoui, Hicham El (PhLAM, Villeneuve d'Ascq) ; Ouerdane, Youcef (Lab. Hubert Curien, St. Etienne) ; Bouwmans, Géraud (PhLAM, Villeneuve d'Ascq) ; Habert, Rémi (PhLAM, Villeneuve d'Ascq) ; Cassez, Andy (PhLAM, Villeneuve d'Ascq) ; Boukenter, Aziz (Lab. Hubert Curien, St. Etienne) ; Capoen, Bruno (PhLAM, Villeneuve d'Ascq) et al.
We evaluate the temperature effect on the X-ray radiation-induced luminescence (RIL) of differently doped silica fibers obtained via the sol-gel route. Previous investigations showed that these optical materials exhibit interesting dosimetry properties, such as very good detection capabilities and linear response over a large range of dose rate. [...]
2024 - 7 p.
- Published in : IEEE Trans. Nucl. Sci. 71 (2024) 2280-2286
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Temperature Effect on the Radioluminescence of Cu-, Ce-, and CuCe-Doped Silica-Based Fiber Materials
/ Kerboub, Nourdine (CERN ; HCL, Lyon ; CNES, Toulouse) ; Di Francesca, Diego (CERN ; HCL, Lyon) ; Girard, Sylvain (HCL, Lyon) ; Morana, Adriana (Lyon, Ecole Centrale) ; El Hamzaoui, Hicham (Lille U.) ; Ouerdane, Youcef (HCL, Lyon) ; Bouwmans, Géraud (Lille U.) ; Habert, Rémi (Lille U.) ; Boukenter, Aziz (HCL, Lyon) ; Capoen, Bruno (Lille U.) et al.
We evaluate the temperature effect on the X-ray radiation-induced luminescence (RIL) of Cu- or Ce-single-doped and CuCe-codoped silica glass. Previous investigations showed that these optical materials exhibit interesting dosimetry properties, such as very good detection capabilities and linear response over a large range of dose rate. [...]
2021 - 6 p.
- Published in : IEEE Trans. Nucl. Sci. 68 (2021) 1782-1787
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Radiation Environment in the Large Hadron Collider During the 2022 Restart and Related RHA Implications
/ Biłko, Kacper (CERN ; Lab. Hubert Curien, St. Etienne) ; García Alía, Rubén (CERN) ; Aguiar, Ygor (CERN) ; Danzeca, Salvatore (CERN) ; Di Francesca, Diego (CERN) ; Gilardoni, Simone (CERN) ; Girard, Sylvain (ICJ, Lyon ; IUF, Paris) ; Ricci, Daniel (CERN) ; Sebban, Marc (Lab. Hubert Curien, St. Etienne) ; Uznanski, Slawosz (CERN)
In this work, we present the radiation environment of the large hadron collider (LHC), focusing on the year 2022, the first after the Long Shutdown 2 (LS2) (2019–2021). We highlight the most prominent radiation-level changes with respect to the 2018 operation, commenting on the related Radiation Hardness Assurance implications. [...]
2024 - 11 p.
- Published in : IEEE Trans. Nucl. Sci. 71 (2024) 607-617
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CERN Super Proton Synchrotron Radiation Environment and Related Radiation Hardness Assurance Implications
/ Biłko, Kacper (CERN ; Lab. Hubert Curien, St. Etienne) ; García Alía, Rubén (CERN) ; Di Francesca, Diego (CERN) ; Aguiar, Ygor (CERN) ; Danzeca, Salvatore (CERN) ; Gilardoni, Simone (CERN) ; Girard, Sylvain (Lab. Hubert Curien, St. Etienne) ; Esposito, Luigi Salvatore (CERN) ; Fraser, Matthew Alexander (CERN) ; Mazzola, Giuseppe (CERN) et al.
The super proton synchrotron (SPS) is the second largest accelerator at CERN where protons are accelerated between 16 and 450 GeV/c. Beam losses, leading to the mixed-field radiation of up to MGy magnitude, pose a threat to the reliability of the electronic equipment and polymer materials located in the tunnel and its vicinity. [...]
2023 - 10 p.
- Published in : IEEE Trans. Nucl. Sci.
Fulltext: PDF;
In : European Conference on Radiation and its Effects on Components and Systems, Venice, Italy, 3 - 7 Oct 2022, pp.1606-1615
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Radiation Monitoring With Radiosensitive Pure-Silica Core Ultralow Loss Optical Fiber
/ Weninger, Luca (Lab. Hubert Curien, St. Etienne) ; Morana, Adriana (Lab. Hubert Curien, St. Etienne) ; Campanella, Cosimo (Lab. Hubert Curien, St. Etienne) ; Vidalot, Jeoffray (Lab. Hubert Curien, St. Etienne) ; Marin, Emmanuel (Lab. Hubert Curien, St. Etienne) ; Ouerdane, Youcef (Lab. Hubert Curien, St. Etienne) ; Boukenter, Aziz (Lab. Hubert Curien, St. Etienne) ; Alía, Rubén García (CERN) ; Girard, Sylvain (Lab. Hubert Curien, St. Etienne ; IUF, Paris)
This article presents a new prospect for radiation detection exploiting the high radiation sensitivity of an ultralow-loss pure-silica core optical fiber (ULL-PSCF). This fiber exhibits very high transient X-ray radiation-induced attenuation (RIA) levels from UV to IR during irradiation, while its RIA quickly returns to a low permanent level after irradiation. [...]
2024 - 8 p.
- Published in : IEEE Trans. Nucl. Sci.
Fulltext: PDF;
In : Conference on Radiation and its Effects on Components and Systems (RADECS 2023), Toulouse, France, 25 - 29 Sep 2023, pp.1813-1820
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Calibration in the Visible and Infrared Domains of Multimode Phosphosilicate Optical Fibers for Dosimetry Applications
/ Weninger, Luca (Lab. Hubert Curien, St. Etienne) ; Campanella, Cosimo (Lab. Hubert Curien, St. Etienne) ; Morana, Adriana (Lab. Hubert Curien, St. Etienne) ; Fricano, Fiammetta (Lab. Hubert Curien, St. Etienne) ; Marin, Emmanuel (Lab. Hubert Curien, St. Etienne) ; Ouerdane, Youcef (Lab. Hubert Curien, St. Etienne) ; Boukenter, Aziz (Lab. Hubert Curien, St. Etienne) ; García Alía, Rubén (CERN) ; Girard, Sylvain (Lab. Hubert Curien, St. Etienne)
We systematically explore the suitability of two radiation-sensitive multimode optical fibers (OFs) with either P or GeP-doped cores to serve as the sensing elements in point or distributed dosimeters. To this end, we measured the dependences of their spectral radiation-induced attenuation (RIA) in the visible and near-infrared (near-IR) domain (400–2100 nm) up to total ionizing dose (TID) of 5 kGy(SiO2) while varying the irradiation temperature from −80 °C to +80 °C and the dose rate between 1 mGy(SiO2)/s and 10 Gy(SiO2)/s. [...]
2023 - 9 p.
- Published in : IEEE Trans. Nucl. Sci.
In : European Conference on Radiation and its Effects on Components and Systems, Venice, Italy, 3 - 7 Oct 2022, pp.1908-1916
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Dosimetry Mapping of Mixed-Field Radiation Environment Through Combined Distributed Optical Fiber Sensing and FLUKA Simulation
/ Di Francesca, Diego (CERN) ; Infantino, Angelo (CERN) ; Li Vecchi, Gaetano (CERN ; Jean Monnet U. ; Lab. Hubert Curien, St. Etienne) ; Girard, Sylvain (Jean Monnet U. ; Lab. Hubert Curien, St. Etienne) ; Alessi, Antonino (Jean Monnet U. ; Lab. Hubert Curien, St. Etienne) ; Kadi, Yacine (CERN) ; Brugger, Markus (CERN)
Distributed optical fiber (OF) radiation sensing is a technique recently adopted at CERN for the monitoring of radiation dose levels in the proton synchrotron (PS) booster and in the PS. In this paper, we present the progress made on our previous work by benchmarking the rich information contained in the spatially distributed OF dose measurement with the radiation levels simulated with the FLUKA Monte Carlo code. [...]
2019 - 7 p.
- Published in : IEEE Trans. Nucl. Sci. 66 (2019) 299-305
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