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CERN Accelerating science

CERN Document Server 2,037 records found  1 - 10nextend  jump to record: Search took 0.32 seconds. 
1.
EM characterization of Damping materials for CLIC RF accelerating structures / De Michele, Giovanni (CERN ; PSI, Villigen) ; Grudiev, Alexej (CERN)
Electromagnetic (EM) characterization of materials up to high frequencies is a major requirement for the correct modelling of many accelerator components: collimators, kickers, high order modes damping devices for accelerating cavities [...]
CERN-OPEN-2013-029 ; CLIC-Note-988.
- 2013 - 28.
Preprint
2.
Broadband electromagnetic charaterization of materials for accelerator components / De Michele, G (PSI, Villigen) ; Zannini, C (Ecole Polytechnique, Lausanne ; CERN) ; Grudiev, A (CERN) ; Metral, E (CERN) ; Pieloni, T (CERN) ; Rumolo, G (CERN)
Electromagnetic (EM) characterization of materials up to high frequencies is a major requirement for the correct modeling of many accelerator components: collimators, kickers, high order modes damping devices for accelerating cavities. In this scenario, the coaxial line method has gained much importance compared to other methods because of its applicability in a wide range of frequencies. [...]
CERN-ATS-2011-104.- Geneva : CERN, 2011 - 3 p. Fulltext: PDF; External link: Published version from JACoW
In : 2nd International Particle Accelerator Conference, San Sebastian, Spain, 4 - 9 Sep 2011, pp.MOPS072
3.
RF Design of the CLIC Main Linac Accelerating Structure / Grudiev, Alexej (CERN)
2013 - Published in : ICFA Beam Dyn. Newsl.: 62 (2013) , pp. 79-86 External link: Fulltext from ICFA
4.
Analysis of long-range wakefields in CLIC main Linac Accelerating Structures with Damping Loads / De Michele, G (PSI, Villigen ; EPFL, Lausanne ; CERN) ; Grudiev, A (CERN)
The baseline design of the CLIC accelerating structure foresees a moderate detuning and heavy damping of high order modes (HOMs), which are the source of long-range transverse wakefields. Such unwanted fields produce bunch-to-bunch instabilities so the HOMs must be suppressed. [...]
CERN-ATS-2012-118; CLIC-Note-976.- Geneva : CERN, 2012 - 3 p. - Published in : Conf. Proc.: C1205201 (2012) , pp. WEPPR077
Fulltext: CLIC_note_967 - PDF; CERN-ATS-2012-118 - PDF; External link: Published version from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.3111
5.
Design of waveguide damped cells for 12 GHz high gradient accelerating structures / Sjobak, Kyrre Ness (U. Oslo, Dept. Phys. ; CERN) ; Grudiev, Alexej (CERN) ; Adli, Erik (U. Oslo, Dept. Phys)
This document describes the design procedure and numerical techniques used to optimize waveguidedamped traveling wave accelerating structure cells for high gradients, and characterize their wakefields [...]
CERN-OPEN-2014-035 ; CLIC-Note-1026.
- 2014 - 128.
Preprint
6.
Electromagnetic Characterization of Materials for the CLIC Damping Rings   / Koukovini-Platia, E (EPFL Lausanne ; CERN) ; De Michele, G (EPFL Lausanne ; PSI, Switzerland) ; Zannini, C (CERN) ; Rumolo, G (CERN)
WP: 4: AccNet: Accelerator Science Networks
Task: 4.3: RFTech

The performance of the Compact LinearCollider (CLIC) damping rings (DR) is likely to be limited by collective effects due to the unprecedented brilliance of the beams. [...]
EuCARD-CON-2012-018.
- 2012.
Published version from JACoW
7.
Radio frequency quadrupole for Landau damping in accelerators / Grudiev, A (CERN)
We propose using a radio frequency quadrupole (RFQ) to introduce both the longitudinal spread of betatron frequency and the transverse spread of synchrotron frequency for Landau damping of transverse beam instabilities in accelerators. The existing theory of stability diagrams for Landau damping is applied to the case of a RFQ. [...]
2014 - 5 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 011001 APS Open Access article: PDF;
8.
Novel Manufacturing Concepts for 12 GHz High Gradient Accelerating Structures / Solodko, Anastasiya (CERN) ; Atieh, Said (CERN) ; Catalán Lasheras, Nuria (CERN) ; Grudiev, Alexej (CERN) ; Lebet, Serge (CERN) ; Wuensch, Walter (CERN) ; Zha, Hao (Beijing U. of Tech.)
CLIC high gradient accelerating structures (AS) work-ing in X-band are made of copper ultra-high precision discs, requiring both milling and turning operations. Discs are then joint together by diffusion bonding. [...]
CERN-ACC-2017-265; CLIC-Note-1131.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-THPAB039 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPAB039
9.
High frequency electromagnetic characterization of NEG properties for the CLIC damping rings / Koukovini-Platia, E (CERN) ; Rumolo, G (CERN) ; Zannini, C (CERN)
Coating materials will be used in the CLIC damping rings (DR) to suppress two-stream effects. In particular, NEG coating is necessary to suppress fast beam ion instabilities in the electron damping ring (EDR). [...]
CERN-ACC-2014-0117; CLIC-Note-1039.- Geneva : CERN, 2014 - 4 p. Fulltext: CLIC-Note-1039 - PDF; CERN-ACC-2014-0117 - PDF; External link: Published version from JaCoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.2384
10.
Design of the Compact Linear Collider main linac accelerating structure made from two halves / Zha, Hao (CERN) ; Grudiev, Alexej (CERN)
Milling on two longitudinally split halves is one method to manufacture accelerating structures. This method is simple and allows one to avoid electromagnetic fields at bonding joints, making it attractive in manufacturing high-gradient accelerating structures. [...]
2017 - 10 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 042001 Fulltext: PDF;

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