2026-02-13
06:54 |
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2026-02-13
06:54 |
Reaching mK-scale stability in CP-ɸOTDR over daily measurements
/ Magalhães, Regina (Alcala de Henares U.) ; Neves, Tiago (CERN ; Ecole Polytechnique, Lausanne) ; Costa, Luis (Alcala de Henares U.) ; Scherino, Lorenzo (CERN ; Sannio U.) ; Petagna, Paolo (CERN) ; Thevenaz, Luc (Ecole Polytechnique, Lausanne) ; Martin-Lopez, Sonia (Alcala de Henares U.) ; Gonzalez-Herraez, Miguel (Alcala de Henares U.) ; Martins, Hugo F (CSIC, Madrid)
We propose several processing methods to mitigate the probability of large errors in Chirped-pulse ɸOTDR, improving performances for long-term measurements. For no perturbation applied, we reach a 2 mK error after a 24 h experiment..
2020
- Published in : Tech. Dig. Ser. 57 (2020) T3.63
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2026-02-13
06:54 |
Humidity Effect on Acrylate- and Polyimide-Coated Fibres for Distributed Sensing Applications
/ Neves, Tiago (CERN ; Ecole Polytechnique, Lausanne) ; Magalhães, Regina (Alcala de Henares U.) ; Scherino, Lorenzo (CERN ; Sannio U.) ; Martin-Lopez, Sonia (Alcala de Henares U.) ; Martins, Hugo F (CSIC, Madrid) ; Petagna, Paolo (CERN) ; Thévenaz, Luc (Ecole Polytechnique, Lausanne)
A study of the effect of humidity on acrylate- and polyimide-coated fibres is analysed over a large range of humidity and temperature (-20 °C to +50 °C) using phase-sensitive Rayleigh reflectometry..
2020
- Published in : Tech. Dig. Ser. 57 (2020) T3.73
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2026-02-13
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2026-02-13
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Static analysis of Java enterprise applications : frameworks and caches, the elephants in the room
/ Antoniadis, Anastasios (Athens U.) ; Filippakis, Nikos (CERN) ; Krishnan, Paddy (Unlisted, AU) ; Ramesh, Raghavendra (Unlisted, AU) ; Allen, Nicholas (Unlisted, AU) ; Smaragdakis, Yannis (Athens U.)
Enterprise applications are a major success domain of Java, and Java is the default setting for much modern static analysis research. It would stand to reason that high-quality static analysis of Java enterprise applications would be commonplace, but this is far from true. [...]
2020 - 14 p.
- Published in : 10.1145/3385412.3386026
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2026-02-13
06:54 |
Monitoring of an high temperature superconductor magnet by means of OFDR
/ Marcon, Leonardo (U. Padua (main)) ; Castaldo, Bernardo (CERN) ; Nugteren, Jeroen Van (CERN) ; Chiuchiolo, Antonella (Darmstadt, GSI) ; Bajas, Hugues (CERN) ; Kirby, Glyn (CERN) ; Galtarossa, Andrea (U. Padua (main)) ; Bajko, Marta (CERN) ; Palmieri, Luca (U. Padua (main))
The cool-down and powering of a high temperature superconductor mag- net have been monitored by means of optical frequency domain reflectometry. The optical fibers have been integrated in the structure to sense thermal perturbations and deformations..
2020
- Published in : Tech. Dig. Ser. 57 (2020) T3.69
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2026-02-13
04:07 |
The complete three-loop unpolarized and polarized massive operator matrix elements and asymptotic Wilson coefficients
/ Ablinger, J. (Linz U., RISC) ; Behring, A. (Garching, Max Planck Inst.) ; Blümlein, J. (DESY, Zeuthen ; Dortmund U.) ; De Freitas, A. (Linz U., RISC) ; von Manteuffel, A. (Regensburg U.) ; Schneider, C. (Linz U., RISC) ; Schönwald, K. (CERN)
We report on the three-loop unpolarized and polarized massive operator matrix elements, with single- and two-mass corrections, and the associated deep-inelastic massive Wilson coefficients in the region $Q^2 \gg m_Q^2$, the calculation of which has been completed recently. We also provide fast and precise numerical representations of the massless Wilson coefficients, splitting functions to tree-loop order, and target-mass corrections in $x$-space well suited for QCD-fitting codes..
arXiv:2602.10334; DESY-26-16; RISC Report Series 26--01; MPP--2026-17.-
2026-02-10 - 16 p.
- Published in : PoS: RADCOR2025 (2025) , pp. 076
Fulltext: PDF;
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2026-02-12
06:11 |
Investigation of the FastIC+ ASIC for timing characterisation of heterostructured scintillators and BGO
/ Lowis, C (CERN ; RWTH Aachen U.) ; Cardona, C (Boston U. (main)) ; Terragni, G (CERN) ; Mazzanti, D (U. Barcelona (main)) ; Ballabriga Sune, R (CERN) ; Alozy, J (CERN) ; Gómez, S (Barcelona, Polytechnic U.) ; Gascón, D (U. Barcelona (main)) ; Langen, K J (RWTH Aachen U.) ; Ziemons, K (Aachen U. of Appl. Sci., Julich) et al.
BGO and EJ-232-based heterostructured scintillators offer acombination of high detection efficiency and good timing performanceby combining the two materials in a stack of alternating micro-meterthick layers. This makes them interesting for Time Of FlightPositron Emission Tomography (TOF-PET) where γ-detectionefficiency and the Coincidence Time Resolution (CTR) are keyparameters. [...]
2026 - 16 p.
- Published in : JINST 21 (2026) P02014
Fulltext: PDF;
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2026-02-12
06:11 |
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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2026-02-12
06:11 |
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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