CERN Accelerating science

All CERN Accelerators documents

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2020-11-20
06:01
ESS$\nu$SB Linac Design and Beam Dynamics / Folsom, Benjamin (ESS, Lund) ; Gålnander, Björn (ESS, Lund) ; Eshraqi, Mamad (ESS, Lund) ; Farricker, Aaron (CERN)
The ESS neutrino superbeam project is being studied as an upgrade to the European Spallation Source. This would entail the addition of an $\mathrm{H^-}$ source to the existing beamline to send $\mathrm{H^-}$ pulses in between proton pulses, effectively doubling the beam power from five to ten megawatts. [...]
SISSA, 2019 - 6 p. - Published in : PoS NuFact2019 (2019) 060
In : The 21st International Workshop on Neutrinos from Accelerators, Daegu, Republic Of Korea, 26 - 31 Aug 2019, pp.060

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2020-11-18
11:30
Unidentified Falling Objects in the Large Hadron Collider: Formation, Charging Mechanisms and Dynamics of Dust Particulates in a High Energy Proton Accelerator / Belanger, Philippe
Micrometer-sized dust particulates present in the LHC beam pipe are known to be causing a large number of sporadic beam loss events all around the LHC, some of which are large enough to provoke protection dumps or induce magnet quenches [...]
CERN-THESIS-2020-196 http://hdl.handle.net/2429/76246 ; DOI:10.14288/1.0394575. - Vancouver : University of British Columbia, 2020-10-01. - 79 p.

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2020-11-18
11:18
The Compact Linear Collider (CLIC) Snowmass 2021 LoI / Robson, Aidan (University of Glasgow (GB)) ; Burrows, Philip Nicholas (University of Oxford (GB)) ; Schulte, Daniel (CERN) ; Stapnes, Steinar (CERN)
The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e+e− collider under development by the CLIC accelerator collaboration. [...]
CERN-ACC-2020-0033 ; CLIC-Note-1168.
- 2020. - 4 p.
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2020-11-18
06:03
Novel $X$ -band transverse deflection structure with variable polarization / Craievich, P (PSI, Villigen) ; Bopp, M (PSI, Villigen) ; Braun, H H (PSI, Villigen) ; Citterio, A (PSI, Villigen) ; Fortunati, R (PSI, Villigen) ; Ganter, R (PSI, Villigen) ; Kleeb, T (PSI, Villigen) ; Marcellini, F (PSI, Villigen) ; Pedrozzi, M (PSI, Villigen) ; Prat, E (PSI, Villigen) et al.
A collaboration between DESY, PSI and CERN has developed and built an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The prototype of the novel X-band TDS, the polarizable $X$-band (PolariX) TDS, was fabricated at PSI following the high-precision tuning-free production process developed for the C-band Linac of the SwissFEL project. [...]
2020 - 22 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 112001 Fulltext: PDF;

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2020-11-17
15:54
Beam Dynamics Challenges for High-Energy Linear Colliders / Adli, Erik (University of Oslo (NO)) ; Burrows, Philip Nicholas (University of Oxford (GB)) ; Schulte, Daniel (CERN) ; Stapnes, Steinar (CERN)
CLIC can in principle be extended to higher energies than the currently foreseen 3 TeV final stage. [...]
CERN-ACC-2020-0032 ; CLIC-Note-1167.
- 2020. - 4 p.
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2020-11-17
11:20
Note destinée au service de piquet : Procédure à suivre pour le remplacement d'un PM dans un Cedar / Rossa, E
LEP-BI-Note-84-4.- Geneva : CERN, 1984 - 6 p. Fulltext: PDF;

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2020-11-17
04:21
Modeling and simulation of transverse wakefields in PWFA / Chen, J.B.B. (CERN ; Oslo U.) ; Schulte, D. (CERN) ; Adli, E. (Oslo U.)
A simplified model describing the PWFA (plasma wakefield acceleration) transverse instability in the form of a wake function parameterized only with an effective cavity aperture radius $a$ is benchmarked against PIC-simulations. This wake function implies a $1/a^4$ scaling of the transverse wakefields, which indicates transverse intra-beam wakefields typically several orders of magnitude higher than in conventional acceleration structures. [...]
arXiv:1912.09035.- 2020-09-19 - 9 p. - Published in : J. Phys. : Conf. Ser. 1596 (2020) 012057 Fulltext: PDF;
In : 4th European Advanced Accelerator Concepts Workshop, La Biodola, Isola d'Elba, Italy, 15 - 21 Sep 2019, pp.012057

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2020-11-16
09:50
Single-Event Radiation Effects in Hardened and State-of-the-art Components for Space and High- Energy Accelerator Applications / Tali, Maris
In this work, the physical mechanisms of electron-induced single-event effects have been studied [...]
CERN-THESIS-2019-404 - 128 p.

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2020-11-14
07:02
On-line beam monitoring and dose profile measurements of a $^{208}$Pb beam of 150 GeV/n with a liquid-filled ionization chamber array / Wyrwoll, V (CERN ; Inst. Theor. Astrophys., Oslo) ; Delfs, B (Oldenburg U.) ; Lapp, M (Freiburg U.) ; Poppinga, D (Freiburg U.) ; Fernandéz Martinéz, P (CERN) ; Kastriotou, M (Rutherford) ; García Alía, R (CERN) ; Røed, K (Inst. Theor. Astrophys., Oslo) ; Gerbershagen, A (CERN) ; Looe, H K (Oldenburg U.) et al.
In this study, the possibility of on-line monitoring of an ultra-high-energy (UHE) beam of 150 GeV/n lead ($^{208}$Pb) ions using a liquid-filled ionization chamber array (OCTAVIUS 1000SRS, PTW Freiburg, Germany) is evaluated. The applicability of the array has been tested for the investigated beam, where adequate adjustments of the array have been made for measurements under very low fluxes of $10^2$ to $10^4$  ions / cm$^2$ /s. [...]
2021 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 987 (2021) 164831

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2020-11-14
07:02
Production and Study of Neutron Rich Heavy Nuclei, GALS Setup / Zemlyanoy, S G (Dubna, JINR) ; Zagrebaev, V I (Dubna, JINR) ; Avvakumov, K A (Dubna, JINR) ; Kazarinov, N Yu (Dubna, JINR) ; Kudryavtsev, Yu (Leuven U.) ; Fedosseev, V (CERN) ; Bark, R (iThemba LABS) ; Janas, Z (Warsaw U.)
To produce and investigate exotic heavy neutron rich nuclei located in the “north-east” region of nuclear map the new setup is under construction at Flerov Laboratory for Nuclear Reactions (FLNR) of JINR, Dubna. [...]
2020. - 7 p.

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