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A Radiation-Tolerant 25.6-Gb/s High-Speed Transmitter in 28-nm CMOS With a Tolerance of 1 Grad
/ Klekotko, A (CERN ; Leuven U.) ; Biereigel, S (CERN) ; Baszczyk, M (CERN) ; Moreira, P (CERN) ; Martina, F (CERN) ; Prinzie, J (Leuven U.) ; Kulis, S (Leuven U.)
This article presents a 25.6-Gbit $\cdot $ s−1 high-speed transmitter (HST) manufactured using 28-nm CMOS technology. The HST macroblock includes an all-digital phase-locked loop (ADPLL), duty cycle corrector (DCC) circuit, data pattern generator, serializer, and a driver capable of driving the differential 100- $\Omega $ line as well as a silicon photonics (SiPh) ring modulator (RM). [...]
2024 - 9 p.
- Published in : IEEE Trans. Nucl. Sci. 71 (2024) 2124-2132
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Comparison of High Energy X-Ray and Cobalt-60 Irradiations on MOS Capacitors
/ Girones, Vincent (Montpellier U.) ; Boch, Jérôme (Montpellier U.) ; Saigné, Frédéric (Montpellier U.) ; Carapelle, Alain (CERN) ; Chapon, Arnaud ; Maraine, Tadec (Montpellier U.) ; Alía, Rubén García (CERN)
The use of a high energy X-ray generator for Total Ionizing Dose (TID) testing is studied on metal-oxide semiconductor (MOS) capacitors. Several conditions were studied for the high energy X-ray irradiations (with aluminum and lead filters) and the experimental results are compared to Cobalt 60 (Co-60) irradiations. [...]
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.1879-1886
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Cleaning of laser-induced periodic surface structures on copper by gentle wet chemical processing
/ Lorenz, Pierre (TROPOS, Leibniz) ; Ehrhardt, Martin (TROPOS, Leibniz) ; Lotnyk, Andriy (TROPOS, Leibniz) ; Griebel, Jan (TROPOS, Leibniz) ; Zimmer, Klaus (TROPOS, Leibniz) ; Zajadacz, Joachim (TROPOS, Leibniz) ; Himmerlich, Marcel (CERN) ; Bez, Elena (CERN ; Leipzig U.) ; Taborelli, Mauro (CERN) ; Rosenow, Steffen (Leipzig U.) et al.
•Cleaning of 365 nm LIPSS from debris of with microemulsions has been demonstrated.•Excellent debris and particles removal while maintaining the LIPSS pattern were found.•The cleaning mechanism is dominated of selective dissolution of nanomaterial and oxides. Laser-induced periodic surface structures (LIPSS) attract considerable attention due to the manifold applications enabled by these self-organised structures ranging from optical colouring to bio-mimicking or wetting effects. [...]
2024 - 10 p.
- Published in : Appl. Surf. Sci. 679 (2025) 161115
Fulltext: PDF;
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Effects of High Fluence Particle Irradiation on Germanium-on-Silicon Photodiodes
/ Olanterä, Lauri (CERN) ; Scarcella, Carmelo (CERN) ; Lalović, Milana (CERN ; Belgrade U.) ; Détraz, Stéphane (CERN) ; Pandey, Awanish (CERN) ; Prousalidi, Theoni (CERN ; Natl. Tech. U., Athens) ; Sandven, Ulrik (CERN) ; Sigaud, Christophe (CERN) ; Soós, Csaba (CERN) ; Troska, Jan (CERN)
Waveguide-Integrated Germanium-on-Silicon (Ge-on-Si) photodiodes are integral components in silicon photonics and understanding their radiation tolerance is important for applications that intend to use silicon photonics in harsh radiation environments. Here we report the results of high fluence particle irradiation tests on Ge-on-Si photodiodes. [...]
2024 - 8 p.
- Published in : IEEE Trans. Nucl. Sci. 71 (2024) 728-735
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Assessment of Training Performance, Degradation and Robustness of Paraffin-Wax Impregnated Nb3Sn Demonstrator Under High Magnetic Field
/ Araujo, D M (PSI, Villigen) ; Auchmann, B (PSI, Villigen ; CERN) ; Brem, A (PSI, Villigen) ; Daly, M (PSI, Villigen) ; Hug, C (PSI, Villigen) ; Michlmayr, T (PSI, Villigen) ; Amm, K (Brookhaven Natl. Lab.) ; Anerella, M (Brookhaven Natl. Lab.) ; Yahia, A Ben (Brookhaven Natl. Lab.) ; Cozzolino, J (Brookhaven Natl. Lab.) et al.
In the context of high-energy physics, the use of Nb3Sn superconducting magnets as a cost-effective and reliable technology depends on improvements in the following areas: long development and manufacturing cycles, conductor degradation after thermal cycling, long training, as well as a demonstration in accelerator magnets with a beam aperture of the full potential of modern Nb3Sn conductors. In short, performance, robustness, and cost are the three issues to be addressed. [...]
2024 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 7000208
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Application of High Voltage Insulation on the Magnet Feeder Superconducting Joints During ITER Machine Assembly
/ Clayton, Nicholas (Euratom, St. Paul Lez Durance) ; Marushin, Egor (Euratom, St. Paul Lez Durance) ; Pasdeloup, Florian (Euratom, St. Paul Lez Durance ; CERN) ; Kim, Hyungjun (Euratom, St. Paul Lez Durance) ; Gung, Chen-yu (Euratom, St. Paul Lez Durance)
The ITER Magnet Feeders are composed of three main sections which are connected together on the ITER site. During this process, the superconducting busbars which carry the electrical current to the ITER magnets are connected together via superconducting joints. [...]
2024 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4204304
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Microstructure Characterization of Nb$_3$Sn Wires With Nanoprecipitate Artificial Pinning Centers Using Synchrotron High-Energy X-Rays
/ Croteau, Jean-Francois (LBL, Berkeley) ; Baskys, Algirdas (LBL, Berkeley ; CERN) ; Naus, Michael (LBL, Berkeley) ; Park, Jun-Sang (Argonne, PHY) ; Kenesei, Peter (Argonne, PHY) ; Xu, Xingchen (Fermilab) ; Wan, Fang (Fermilab) ; Pong, Ian (LBL, Berkeley)
Synchrotron high-energy X-rays were used in an attempt to estimate nanoprecipitate size and size distribution in Nb$_3$Sn powder-in-tube wires with ZrO$_2$ or HfO$_2$ rtificial pinning centers via small angle X-ray scattering (SAXS). The effect of sample preparation was studied but measurements for as-received and for partially etched wires were not successful. [...]
2023 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 8000505
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