1.
|
High-temperature superconducting screens for magnetic field-error cancellation in accelerator magnets
/ Bortot, L. (CERN ; Darmstadt, Tech. U.) ; Mentink, M. (CERN) ; Petrone, C. (CERN) ; Van Nugteren, J. (CERN) ; Deferne, G. (CERN) ; Koettig, T. (CERN) ; Kirby, G. (CERN) ; Pentella, M. (CERN ; Turin Polytechnic) ; Perez, J.C. (CERN) ; Pincot, F.O. (CERN) et al.
Accelerators magnets must have minimal magnetic field imperfections for reducing particle-beam instabilities. In the case of coils made of high-temperature superconducting (HTS) tapes, the field imperfections from persistent currents need to be carefully evaluated. [...]
arXiv:2103.14354.-
2021-08-26 - 11 p.
- Published in : Supercond. Sci. Technol. 34 (2021) 105001
Fulltext: PDF;
|
|
2.
|
Numerical Analysis of the Screening Current-Induced Magnetic Field in the HTS Insert Dipole Magnet Feather-M2.1-2
/ Bortot, Lorenzo (CERN ; Darmstadt, Tech. U.) ; Mentink, Matthias (CERN) ; Petrone, Carlo (CERN) ; Van Nugteren, Jeroen (CERN) ; Kirby, Glyn (CERN) ; Pentella, Mariano (CERN ; Polytech. Turin) ; Verweij, Arjan (CERN) ; Schöps, Sebastian (Darmstadt, Tech. U.)
Screening currents are field-induced dynamic phenomena which occur in superconducting materials, leading to persistent magnetization. Such currents are of importance in ReBCO tapes, where the large size of the superconducting filaments gives rise to strong magnetization phenomena. [...]
arXiv:2005.09467.-
2020-10-30 - 14 p.
- Published in : Supercond. Sci. Technol. 33 (2020) 125008
Fulltext: PDF; Fulltext from publisher: PDF;
|
|
3.
|
MALTA-Cz: A radiation hard full-size monolithic CMOS sensor with small electrodes on high-resistivity Czochralski substrate
/ Pernegger, H. (CERN) ; Allport, P. (Birmingham U.) ; Berlea, D.V. (DESY, Zeuthen) ; Birman, A. (Technion) ; Bortoletto, D. (Oxford U.) ; Buttar, C. (Glasgow U.) ; Charbon, E. (LPHE, Lausanne) ; Dachs, F. (CERN) ; Dao, V. (CERN) ; Denizli, H. (Abant Izzet Baysal U.) et al.
Depleted Monolithic Active Pixel Sensor (DMAPS) sensors developed in the Tower Semiconductor 180 nm CMOS imaging process have been designed in the context of the ATLAS ITk upgrade Phase-II at the HL-LHC and for future collider experiments. The "MALTA-Czochralski (MALTA-Cz)" full size DMAPS sensor has been developed with the goal to demonstrate a radiation hard, thin CMOS sensor with high granularity, high hit-rate capability, fast response time and superior radiation tolerance. [...]
arXiv:2301.03912.-
2023-09-13 - 24 p.
- Published in : JINST 18 (2023) P09018
Fulltext: 2301.03912 - PDF; Publication - PDF;
|
|
4.
|
|
|
Radiative Decay of the $^{229m}$Th Nuclear Clock Isomer in Different Host Materials
/ Pineda, S.V. (Leuven U.) ; Chhetri, P. (Leuven U. ; Mainz U.) ; Bara, S. (Leuven U.) ; Elskens, Y. (Leuven U.) ; Casci, S. (Leuven U.) ; Alexandrova, A.N. (UCLA, Los Angeles (main)) ; Au, M. (CERN) ; Athanasakis-Kaklamanakis, M. (Leuven U. ; CERN ; Imperial Coll., London) ; Bartokos, M. (Vienna, Tech. U., Atominst.) ; Beeks, K. (Ecole Polytechnique, Lausanne) et al.
A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN of the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in different host materials is reported. [...]
arXiv:2408.12309.
-
13.
Fulltext
|
|
5.
|
Online Multi-Objective Particle Accelerator Optimization of the AWAKE Electron Beam Line for Simultaneous Emittance and Orbit Control
/ Scheinker, Alexander (Los Alamos) ; Hirlaender, Simon (CERN) ; Velotti, Francesco Maria (CERN) ; Gessner, Spencer (CERN ; SLAC) ; Zevi Della Porta, Giovanni (CERN) ; Kain, Verena (CERN) ; Ramjiawan, Rebecca (CERN ; JAI, UK)
Multi-objective optimization is important for particle accelerators where various competing objectives must be satisfied routinely such as, for example, transverse emittance vs bunch length. We develop and demonstrate an online multi-time scale multi-objective optimization algorithm that performs real time feedback on particle accelerators. [...]
arXiv:2003.11155.-
2020-05-22 - 4 p.
- Published in : AIP Adv. 10 (2020) 055320
Fulltext: 2003.11155 - PDF; 5.0003423 - PDF;
In : 64th Annual Conference on Magnetism and Magnetic Materials, Las Vegas, United States, 4 - 8 Nov 2019, pp.055320
|
|
6.
|
Isothermal annealing of radiation defects in silicon bulk material of diodes from 8” silicon wafers
/ Kieseler, Jan (CERN ; KIT, Karlsruhe, ETP) ; Dias de Almeida, Pedro Gonçalo (CERN ; Cantabria Inst. of Phys.) ; Kałuzińska, Oliwia Agnieszka (CERN ; Wroclaw Tech. U. ; KIT, Karlsruhe) ; Mühlnikel, Marie Christin (CERN ; Kirchhoff Inst. Phys.) ; Diehl, Leena (CERN) ; Sicking, Eva (CERN) ; Zehetner, Phillip (CERN ; LMU Munich (main))
The high luminosity upgrade of the LHC will provide unique physics opportunities, such as the observation of rare processes and precision measurements. However, the accompanying harsh radiation environment will also pose unprecedented challenged to the detector performance and hardware. [...]
arXiv:2211.04849.-
2023-09-06 - 19 p.
- Published in : JINST 18 (2023) P09010
Fulltext: document - PDF; 2211.04849 - PDF;
|
|
7.
|
Superconducting solenoid system with adjustable shielding factor for precision measurements of the properties of the antiproton
/ Devlin, Jack A (RIKEN (main) ; CERN) ; Wursten, Elise (RIKEN (main) ; CERN) ; Harrington, James A (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Higuchi, Takashi (RIKEN (main) ; U. Tokyo (main)) ; Blessing, Pascal E (RIKEN (main) ; Darmstadt, GSI) ; Borchert, Matthias J (RIKEN (main) ; Leibniz U., Hannover) ; Erlewein, Stefan (RIKEN (main) ; CERN ; Heidelberg, Max Planck Inst.) ; Hansen, Jannek J (RIKEN (main)) ; Morgner, Jonathan (RIKEN (main) ; Leibniz U., Hannover) ; Bohman, Matthew A (RIKEN (main) ; Heidelberg, Max Planck Inst.) et al.
A superconducting self-shielding three-solenoid system with an adjustable shielding factor is developed, implemented, and characterized using a single antiproton in a Penning trap. With the tuned system, we suppress external magnetic field disturbances by up to a factor of 225 ± 15, allowing antiproton-to-proton charge-to-mass ratio comparisons with fourfold reduced frequency fluctuations and antiproton magnetic moment determinations with tenfold reduced uncertainty..
2019 - 9 p.
- Published in : Phys. Rev. Applied 12 (2019) 044012
Fulltext from publisher: PDF;
|
|
8.
|
NA62 Liquid Krypton Purity Monitor
/ Bremer, Johan (CERN) ; Bryman, Douglas (British Columbia U. ; TRIUMF) ; Danielsson, Hans (CERN) ; Falaleev, Valeri (Dubna, JINR ; INFN, Perugia) ; Koettig, Torsten (CERN) ; Kurchaninov, Leonid (TRIUMF) ; Liberadzka-Porret, Joanna (CERN) ; Onufrena, Aleksandra (CERN) ; Velghe, Bob (TRIUMF)
A system for determining the purity of liquid krypton employed in the NA62 rare kaon decay experiment at CERN was developed based on the use of a time projection chamber. The attenuation of drifting ionization electrons from absorption of 511 keV gamma rays in liquid krypton was measured to estimate the purity. [...]
arXiv:2210.16232.-
2023-10-10 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1057 (2023) 168764
Fulltext: 2210.16232 - PDF; Publication - PDF;
|
|
9.
|
Radiation hard true single-phase-clock logic for high-speed circuits in 28 nm CMOS
/ Klekotko, A (Leuven U. ; CERN) ; Baszczyk, M (CERN) ; Biereigel, S (Leuven U. ; CERN) ; Kulis, S (CERN) ; Moreira, P (CERN) ; Prinzie, J (Leuven U.) ; Tavernier, F (Leuven U.)
True Single-Phase-Clock (TSPC) dynamic logic is widely used in high-speed circuits such as high-speed SERDES (Serializer/Deserializer) and frequency dividers. TSPC flip-flops (FF) are known for their high operational speed and low power consumption, compared to static FFs. [...]
2023 - 8 p.
- Published in : JINST 18 (2023) C02068
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C02068
|
|
10.
|
|