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1.
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Characterisation of SiC Varistor Quench Protection Operating at 4 Kelvin for Use With Superconducting Magnets
/ Galvin, Tom ; Kirby, Glyn (CERN) ; Pepitone, Kevin (Uppsala U.) ; Coll, Dominic ; Twin, Andrew (Oxford Instruments) ; Warren, David (Oxford Instruments) ; Ball, Steven (Oxford Instruments)
Silicon carbide (SiC) composite high-energy varistors have been demonstrated as a viable alternative to linear resistors as energy extraction devices during an abrupt loss of superconductivity in a magnet, called a quench. These have typically been installed external to the cryostat at ambient temperatures, but for some superconducting magnets it may be beneficial to mount the varistors within the cryostat in vacuum, a gaseous environment, or submerged in liquid cryogens. [...]
2023 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4701005
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
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2.
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Unraveling Laser-Driven Ultrafast Plasma Dynamics Inside Solids
/ Shaikh, Moniruzzaman (Tata Inst.) ; Lad, Amit D (Tata Inst.) ; Jha, Jagannath (Tata Inst.) ; Sarkar, Deep (Tata Inst.) ; Tata, Sheroy (Tata Inst.) ; Chatterjee, Gourab (Tata Inst.) ; Dey, Indranuj (Tata Inst.) ; Jana, Kamalesh (Tata Inst.) ; Singh, Prashant K (Tata Inst.) ; Kumar, G Ravindra (Tata Inst.) et al.
Intense femtosecond lasers, focused on a solid surface, can accelerate ultrashort pulses of electrons to near-light speeds, launching megaampere currents into the solid material behind. Understanding the transport of these relativistic electrons through solids is central to many areas in laser-driven plasmas and their translational research, ranging from laser-driven fusion to the production of micro-accelerators for industrial and medical applications. [...]
2020 - 1 p.
- Published in : (2020) , pp. 238
- Published in : (2020) , pp. 238
In : 2020 IEEE International Conference on Plasma Science, Singapore, Singapore, 6 - 10 Dec 2020
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3.
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The AWAKE Run 2 programme and beyond
/ AWAKE Collaboration
Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. Use of high energy protons to drive wakefields in plasma has been demonstrated during Run 1 of the AWAKE programme at CERN. [...]
arXiv:2206.06040.-
2022-08-12 - 21 p.
- Published in : Symmetry 14 (2022) 1680
Fulltext: document - PDF; 2206.06040 - PDF;
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4.
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Test of the First Full-Length Prototype of the HL-LHC D2 Orbit Corrector Based on Canted Cosine Theta Technology
/ Mangiarotti, Franco J (CERN) ; Duda, Michal (Cracow, INP ; CERN) ; Fiscarelli, Lucio (CERN) ; Kirby, Glyn (CERN) ; Bajko, Marta (CERN) ; Coll, Dominic (Unlisted, GB) ; Desbiolles, Vincent ; Feuvrier, Jerome (CERN) ; Guyon, Jean-Luc (CERN) ; Mazet, Jacky (CERN) et al.
In the context of CERN's high-luminosity upgrade project (HL-LHC) for the Large Hadron Collider (LHC), a new double aperture beam orbit corrector magnets will be installed near the recombination dipole (D2). These 2.2 m long NbTi dipoles are built with the canted cosine theta (CCT) technique. [...]
2020 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4000505
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5.
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Test Results of the CERN HL-LHC low-$\beta$ Quadrupole Short Models MQXFS3c and MQXFS4
/ Mangiarotti, Franco J (CERN) ; Bajas, Hugues (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajko, Marta (CERN) ; Bordini, Bernardo (CERN) ; Bourcey, Nicolas (CERN) ; Duda, Michal (Cracow, INP ; CERN) ; Desbiolles, Vincent (CERN) ; Feuvrier, Jerome (CERN) ; Fleiter, Jerome (CERN) et al.
/LARP
For the High Luminosity Upgrade of the CERN Large Hadron Collider, lower $\beta$* quadrupole magnets based on advanced Nb3Sn conductors will be installed on each side of the ATLAS and CMS experiment insertion zones. As part of the technological developments needed to achieve the required field gradient of 132.6 T/m within a 150-mm aperture, short length model magnets, named MQXFS, are tested both at the CERN SM18 and FERMI Lab test facilities. [...]
FERMILAB-PUB-19-055-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4001705
Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4001705
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6.
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Test of short model and prototype of the HL-LHC D2 orbit corrector based on CCT technology
/ Mangiarotti, Franco (CERN) ; Kirby, Glyn (CERN) ; Duda, Michal (Cracow, INP ; CERN) ; Mentink, Matthias (CERN) ; Fiscarelli, Lucio (CERN) ; Bajko, Marta (CERN) ; Coll, Dominic (Unlisted, GB) ; Desbiolles, Vincent (CERN) ; Feuvrier, Jerome (CERN) ; Mazet, Jacky (CERN) et al.
In the frame of the high-luminosity upgrade project for the large hadron collider, new twin aperture beam orbit corrector magnets will be installed near the recombination dipole (D2). These magnets are 2.2 m long canted cosine theta NbTi dipoles, with two independently powered apertures oriented such that their field vectors are perpendicular to each other and to the direction of the beams. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4002305
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4002305
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7.
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Mapping the Damping Dynamics of Mega-Ampere Electron Pulses Inside a Solid
/ Shaikh, Moniruzzaman (Tata Inst.) ; Lad, Amit D (Tata Inst.) ; Birindelli, Gabriele (CELIA, Bordeaux) ; Pepitone, Kevin (CERN) ; Jha, Jagannath (Tata Inst.) ; Sarkar, Deep (Tata Inst.) ; Tata, Sheroy (Tata Inst.) ; Chatterjee, Gourab (Tata Inst.) ; Dey, Indranuj (Tata Inst.) ; Jana, Kamalesh (Tata Inst.) et al.
We report the lifetime of intense-laser ($2 \times 10^{19}$ W/cm$^2$) generated relativistic electron pulses in solids by measuring the time evolution of their Cherenkov emission. Using a picosecond resolution optical Kerr gating technique, we demonstrate that the electrons remain relativistic as long as 50 picoseconds—more than 1000 times longer than the incident light pulse. [...]
2018 - 5 p.
- Published in : Phys. Rev. Lett. 120 (2018) 065001
Fulltext: PDF;
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8.
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Commissioning of Beam Instrumentation at the CERN AWAKE Facility After Integration of the Electron Beam Line
/ Gorgisyan, Ishkhan (CERN) ; Bracco, Chiara (CERN) ; Burger, Stephane (CERN) ; Cascella, Michele (University Coll. London) ; Döbert, Steffen (CERN) ; Gessner, Spencer (CERN) ; Gschwendtner, Edda (CERN) ; Jensen, Lars (CERN) ; Jensen, Steen (CERN) ; Jolly, Simon (University Coll. London) et al.
The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) is a project at CERN aiming to accelerate an electron bunch in a plasma wakefield driven by a proton bunch. The plasma is induced in a 10 m long rubidium vapor cell using a pulsed Ti:Sapphire laser, with the wakefield formed by a proton bunch from the CERN Super Proton Synchrotron (SPS). [...]
CERN-ACC-2018-109.-
2018 - 5 p.
- Published in : (2018) , pp. WEPAF070
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 072015
Fulltext: wepaf070 - PDF; wepaf070_2 - PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF070
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9.
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LEETCHI: The high current electron source for the CLIC drive beam injector
/ Pepitone, Kevin (CERN) ; Cadilhon, Baptiste (CESTA, Le Barp) ; Cassany, Bruno (CESTA, Le Barp) ; Döbert, Steffen (CERN) ; Gardelle, Jacques (CESTA, Le Barp)
LEETCHI is a source which will produce 140 keV, 5 A, 140 μs electron beams at a repetition rate of 50 Hz. The shot to shot and flat top current stability of this drive beam injector for CLIC has to be better than 0.1% and a geometrical emittance of 14 mm mrad is expected. [...]
CERN-ACC-2017-345.-
2017 - 3 p.
- Published in : 10.18429/JACoW-LINAC2016-THPLR013
Fulltext: PDF;
In : 28th Linear Accelerator Conference, East Lansing, Michigan, 25 - 30 Sep 2016, pp.THPLR013
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10.
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Design of a High Average Current Electron Source for the CLIC Drive Beam Injector
/ Döbert, Steffen (CERN) ; Chritin, Nicolas (CERN) ; Cadilhon, Baptiste (CEA Cadarache) ; Cassany, Bruno (CEA Cadarache) ; Gardelle, Jacques (CEA Cadarache) ; Pepitone, Kevin (CEA Cadarache)
The drive beam injector for CLIC needs to deliver a 4.2 A electron beam for a duration of 140 μs with a repetition rate of 50 Hz. The shot to shot and flat top current stability has to be better than 0.1% to guarantee the beam stability required for CLIC. [...]
CERN-ACC-2014-402.-
2014 - 3 p.
- Published in : (2014) , pp. TUPP030
Fulltext: PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.TUPP030
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