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1.
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Neutron Radiation Response of Optical Fiber Gratings for Sensing in Harsh Environment
/ Berruti, Gaia Maria (Sannio U.) ; Scherino, Lorenzo (CERN) ; Vaiano, Patrizio (Sannio U.) ; Zuppolini, Simona (CNR, Italy) ; Zotti, Aldobenedetto (CNR, Italy) ; Quero, Giuseppe (Molise U.) ; Zarrelli, Mauro (CNR, Italy) ; Borriello, Anna (CNR, Italy) ; Petagna, Paolo (CERN) ; Cusano, Andrea (Sannio U.) et al.
Monitoring in radiation-intensive environments poses major challenges for conventional sensing technologies, which often suffer from performance degradation, high maintenance demands and limited long-term stability. In this context, optical fiber (OF) sensors represent a promising alternative. [...]
2026 - 8 p.
- Published in : J. Lightwave Technol. 44 (2026) 2858-2865
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2.
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FOS-based thermo-hygrometers in the ATLAS Inner Detector
/ Scherino, L (CERN ; Sannio U.) ; Schioppa, E J (INFN, Lecce ; Salento U.) ; Arapova, A (Quebec U., Outaouais) ; Berruti, G M (Sannio U.) ; Bock, W J (Quebec U., Outaouais) ; Borriello, A (Unlisted, IT) ; Campopiano, S (Naples U.) ; Consales, M (Sannio U.) ; Cusano, A (Sannio U.) ; Esposito, F (Naples U.) et al.
We present the main steps of FOS (based on LPG and FBG) installation in the CERN-ATLAS experiment for temperature and humidity measurements, from laboratory calibrations and data acquisition chain development, to their installation and operation..
2022
- Published in : Tech. Dig. Ser. 57 (2022) W4.38
In : 27th International Conference on Optical Fiber Sensors, Alexandria, Virginia, United States, 29 Aug - 2 Sep 2022, pp.W4.38
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3.
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Reactive laser ablation of copper in hydrocarbon atmosphere: synthesis of nanocomposite surface layers for secondary electron yield reduction
/ Lorenz, Pierre (Unlisted, DE) ; Himmerlich, Marcel (CERN) ; Ehrhardt, Martin (Unlisted, DE) ; Bauer, Jens (Unlisted, DE) ; Lotnyk, Andriy (Unlisted, DE) ; Bez, Elena (CERN ; U. Leipzig (main)) ; Kersten, Holger (Kiel U.) ; Zimmer, Klaus (Unlisted, DE)
•Laser ablation in acetylene forms Cu–C composite nanostructures in one step.•Surface SEY depends on both nanostructure and chemical composition.•Laser treatment allows the reduction of SEY from 2.2 down to 1.2.•Electron conditioning reduces SEY to 0.61 via chemical bond changes.•Carbon-oxide bond reduction is key to SEY suppression after conditioning. The functionality of surfaces is dependent on two characteristic properties: surface topography and chemical composition. [...]
2026 - 9 p.
- Published in : Appl. Surf. Sci. 732 (2026) 166487
Fulltext: PDF;
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4.
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Investigation of readout methods for electro-optical beam position monitor pickups
/ Harryman, Daniel (Royal Holloway, U. of London ; Oxford U.) ; Schloegelhofer, Andreas (CERN) ; Tangari, Giacomo (CERN) ; Bosman, Max (Royal Holloway, U. of London) ; Gibson, Stephen (Royal Holloway, U. of London) ; Lefevre, Thibaut (CERN) ; Levens, Thomas (CERN)
Electro-optical pickups are being explored at CERN for the development of a high-bandwidth beam position monitor capable of measuring intrabunch beam position. To support this effort, a prototype electro-optical beam position monitor has been installed in the SPS. [...]
2026 - 4 p.
- Published in : JACoW IBIC 2025 (2026) 788
Fulltext: PDF;
In : 14th International Beam Instrumentation Conference (IBIC 2025), Liverpool, United Kingdom, 7-11 Sep 2025, pp.788
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5.
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Analysis of a phase modulated interferometric Electro-Optic BPM at the CERN SPS
/ Bosman, Max (Royal Holloway, U. of London) ; Arteche, Alberto (Cantabria Inst. of Phys.) ; Harryman, Daniel (U. Oxford (main)) ; Gibson, Stephen (Royal Holloway, U. of London) ; Lefevre, Thibaut (CERN) ; Levens, Thomas (CERN)
The Electro-Optic Beam Position Monitor (EO-BPM) is a new diagnostic tool being developed to enhance the intra-bunch transverse beam position monitoring in the High Luminosity LHC at CERN. This EO-BPM has been installed in the Super Proton Synchrotron (SPS) since 2024. [...]
2026 - 6 p.
- Published in : JACoW IBIC 2025 (2026) 581
Fulltext: PDF;
In : 14th International Beam Instrumentation Conference (IBIC 2025), Liverpool, United Kingdom, 7-11 Sep 2025, pp.581
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6.
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Efficient linewidth compression to the Fourier limit via resonant phonon interaction in diamond
/ Granados, Eduardo (CERN) ; Granados, Camilo (CERN) ; Ahmed, Rizwan (CERN) ; Chrysalidis, Katerina (CERN) ; Fedosseev, Valentin N (CERN) ; Marsh, Bruce A (CERN) ; Wilkins, Shane G (CERN)
We report on large power spectral density enhancement (~40×) of high power nanosecond lasers via coherent Raman conversion in an Fabry-Pérot diamond resonator. The device produced directly a phase locked, near Fourier-limited Stokes output without the need of cavity length stabilization..
2021
- Published in : Tech. Dig. Ser. 151 (2021) NF2B.2
In : Nonlinear Optics Topical Meeting, Online, 9 - 13 Aug, pp.NF2B.2
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7.
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Method to Calculate Resonator Losses Including Diffractive Elements
/ Büker, H (CERN ; KIT, Karlsruhe) ; Granados, E (CERN) ; Chrysalidis, K (CERN) ; Eichhorn, M (KIT, Karlsruhe ; Unlisted, DE)
A ray transfer matrix approach incorporates birefringence, and diffractive effects to quantify spectral resonator losses. The framework supports design optimization for advanced resonators in linewidth variable and tunable laser systems..
2025
- Published in : Tech. Dig. Ser. 102 (2025) JW2A.42
In : Optica Laser Congress 2025, Prague, Czech Republic, 19 - 23 Oct 2025, pp.JW2A.42
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8.
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Narrow-line tunable Laser with direct UV emission based on Ce3+:LiCAF
/ Büker, H (CERN ; KIT, Karlsruhe) ; Granados, E (CERN) ; Chrysalidis, K (CERN) ; Eichhorn, M (KIT, Karlsruhe ; Unlisted, DE)
We propose a GHz-linewidth deep UV laser based on Ce3+:LiCAF as a compact, tunable alternative in nuclear spectroscopy. Its broad Ce-ion emission enables stable, long-term operation across the 285-315 nm range..
2025
- Published in : Tech. Dig. Ser. 102 (2025) JW2A.16
In : Optica Laser Congress 2025, Prague, Czech Republic, 19 - 23 Oct 2025, pp.JW2A.16
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9.
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A novel approach to qualify the straightness of electrostatic septa for the SPS slow extraction
/ Lackner, Friedrich (CERN) ; Prost, Antoine (CERN) ; Balhan, Bruno (CERN) ; Durieux, Camille (CERN ; Unlisted, FR) ; Boucly, Christophe (CERN) ; Monier, Colin (CERN) ; Vincke, Helmut (CERN) ; Ducimetière, Laurent (CERN) ; Fraser, Matthew (CERN) ; van den Kieboom, Reyn (Unlisted, NL ; CERN)
The quality of slow extraction from the SPS (Super ProtonSynchrotron) to the North Area is critically influenced bythe straightness tolerance of the electrostatic septum. Pastobservations have identified a degradation of the anode bodystraightness, resulting in an increased beam loss during ex-traction. [...]
2025 - 4 p.
- Published in : JACoW IPAC 2025 (2025) THPB057
Fulltext: PDF;
In : International Particle Accelerator Conference (IPAC'25), Taipei, Taiwan, 1-6 June 2025, pp.THPB057
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10.
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Tunable Single-Frequency Cascaded Stokes Orders in Monolithic Diamond Raman Lasers
/ Granados, Eduardo (CERN) ; Bernerd, Cyril (CERN) ; Chrysalidis, Katerina (CERN) ; Echarri, Daniel T (CERN) ; Fedosseev, Valentin N (CERN) ; Heinke, Reinhard (CERN) ; Marsh, Bruce (CERN) ; Roiková, Eva (CERN) ; Rothe, Sebastian (CERN) ; Stoikos, Georgios (CERN)
We present results of a temperature-tunable, cascaded single-frequency diamond Raman laser that significantly extends the wavelength coverage in the visible spectral range, enabling broader isotope shift measurements at CERN..
2025
- Published in : Tech. Dig. Ser. 102 (2025) JW2A.35
In : Optica Laser Congress 2025, Prague, Czech Republic, 19 - 23 Oct 2025, pp.JW2A.35
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