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Derniers ajouts:
2021-06-25
04:01
Photon Masks for the ILC Positron Source with 175 and 250 GeV Electron Drive Beam / Alharbi, Khaled (KACST, Riyadh ; U. Hamburg (main) ; DESY, Zeuthen) ; Riemann, Sabine (DESY, Zeuthen) ; Alrashdi, Ayash (KACST, Riyadh) ; Moortgat-Pick, Gudrid (U. Hamburg (main) ; DESY) ; Ushakov, Andriy (U. Hamburg (main)) ; Sievers, Peter (CERN)
In the future the International Linear Collider (ILC), a helical undulator-based polarized positron source, is expected to be chosen. [...]
arXiv:2106.00074 ; DESY-21-084.
- 13 p.

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2021-06-23
06:01
Development and Fabrication of Nb$_3$Sn Rutherford Cable for the 11 T DS Dipole Demonstration Model / Barzi, E (Fermilab) ; Lombardo, V (Fermilab) ; Nobrega, F (Fermilab) ; Turrioni, D (Fermilab) ; Yamada, R (Fermilab) ; Zlobin, A V (Fermilab) ; Karppinen, M (CERN)
Fermilab and CERN started the development of 11 T Nb$_3$Sn dipoles 11 m long to replace a few regular LHC NbTi dipoles and free space for cold collimators in LHC dispersion suppression (DS) areas. An important step in the design of these magnets is the development of the high aspect ratio Nb$_3$Sn cable to achieve the nominal field of 11 T at the nominal LHC operating current of 11.85 kA with 20% margin. [...]
FERMILAB-CONF-11-431-TD.- 2012 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 22 (2012) 6000805 Fulltext: PDF; External link: Fermilab Library Server (fulltext available)
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.6000805

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2021-06-23
06:01
Design and Fabrication of a Single-Aperture 11T Nb$_3$Sn Dipole Model for LHC Upgrades / Andreev, N (Fermilab) ; Apollinari, G (Fermilab) ; Barzi, E (Fermilab) ; Bossert, R (Fermilab) ; Nobrega, F (Fermilab) ; Novitski, I (Fermilab) ; Turrioni, D (Fermilab) ; Yamada, R (Fermilab) ; Zlobin, A V (Fermilab) ; Auchmann, B (CERN) et al.
The planned upgrade of the LHC collimation system includes additional collimators to be installed in the dispersion suppressor areas of points 2, 3 and 7. To provide the necessary longitudinal space for the collimators, a replacement of 8.33 T Nb-Ti LHC main dipoles with 11 T dipoles based on Nb3Sn superconductor compatible with the LHC lattice and main systems is being considered. [...]
FERMILAB-CONF-11-430-TD.- 2011 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 22 (2012) 4001705 Fulltext: PDF; External link: Fermilab Library Server (fulltext available)
In : 22nd International Conference on Magnet Technology, Marseille, France, 12 - 16 Sep 2011, pp.4001705

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2021-06-18
06:16
First demonstration of the use of crab cavities on hadron beams / Calaga, R (CERN) ; Alekou, A (Manchester U.) ; Antoniou, F (CERN) ; Appleby, R B (Manchester U.) ; Arnaudon, L (CERN) ; Artoos, K (CERN) ; Arduini, G (CERN) ; Baglin, V (CERN) ; Barriere, S (CERN) ; Bartosik, H (CERN) et al.
Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at the interaction point (IP). A first demonstration experiment of crabbing with hadron beams was successfully carried out with high energy protons. [...]
2021 - 6 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 062001 Fulltext: PDF;

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2021-06-17
06:00
Results from High Energy Photoproduction at CERN SPS / Richard, F (Orsay, LAL)
We present results from a photoproduction experiment using the CERN n spectrometer with a tagged photon beam giving energies between 20 and 70 GeV. Charm physics and vector meson searches are emphasized. [...]
1980 - 21 p. - Published in : eConf C: 790823 (1979) , pp. 469
External links: ECONF-FERMILAB; Fulltext
In : 9th International Symposium on Lepton and Photon Interactions at High Energies, Batavia, IL, USA, 23 - 29 Aug 1979, pp.469

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2021-06-15
16:51
Manufacturing Process Anomaly Detection in RF Cavities / Agius, Ryan
In order to accelerate charged particles and output them at a constant and controllable energy, modern particle accelerators make use of hollow, torus-like metal structures known as Radio Frequency (RF) cavities [...]
CERN-THESIS-2021-070 - 95 p.


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2021-06-09
06:17
Evaluation of Timing and Synchronization Techniques on NI CompactRIO Platforms / Andreassen, Odd ; Charrondière, Cedric ; Develle, Kevin ; Rossel, Ralf ; Zilliox, Thomas
For distributed data acquisition and control system, clock synchronization between devices is key. [...]
2019. - 4 p.

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2021-06-09
06:17
Anomaly Detection for CERN Beam Transfer Installations Using Machine Learning / Dewitte, Thiebout (Leuven U.) ; Meert, Wannes (Leuven U.) ; Van Trappen, Pieter (CERN) ; Van Wolputte, Elia (Leuven U.)
Reliability, availability and maintainability determine whether or not a large-scale accelerator system can be operated in a sustainable, cost-effective manner. [...]
2019. - 5 p.

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2021-06-01
06:15
Gamma Factory for CERN initiative - progress report / Dutheil, Yann (CERN) ; Abramov, Andrey (Royal Holloway, U. of London) ; Alden, Siobhan (Royal Holloway, U. of London) ; Alemany Fernandez, Reyes (CERN) ; Antsiferov, Pavel (Troitsk, IZMIRAN) ; Apyan, Armen (NAS Armenia, Yerevan) ; Bartosik, Hannes (CERN) ; Bessonov, Evgeny (Lebedev Inst.) ; Biancacci, Nicolo (CERN) ; Bieron, Jacek (Jagiellonian U.) et al.
The Gamma Factory (GF) initiative proposes to use partially stripped ion (PSI) beams as drivers of a new type of high-intensity and high-energy (0.1–400 MeV) photon source. As part of the ongoing Physics Beyond Collider studies, initial beam tests were carried out in 2017 and 2018 at the SPS and LHC with partially stripped xenon and lead beams [...]
SISSA, 2020 - 10 p. - Published in : PoS EPS-HEP2019 (2020) 020 Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.020

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2021-05-29
09:01
Quench Protection Studies for the High Luminosity LHC Nb$_3$Sn Quadrupole Magnets / Ravaioli, Emmanuele (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugues (CERN) ; Duda, Michal (PSI, Villigen ; CERN) ; Ferracin, Paolo (LBNL, Berkeley) ; Ferradas Troitino, Jose (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Mangiarotti, Franco (CERN) ; Marinozzi, Vittorio (Fermilab) ; Mentink, Matthias (CERN) et al.
Achieving the targets of the High Luminosity LHC project requires the installation of new inner triplet magnet circuits for the final focusing of the particle beams on each side of the two main interaction points. Each of the four circuits will include six 150 mm aperture, 132.2 T/m gradient, Nb$_3$Sn quadrupole magnets to be installed in the LHC tunnel. [...]
FERMILAB-PUB-21-124-TD.- 2021 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4700405 Fulltext from Publisher: PDF;

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