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TE Preprints

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2013-04-18
16:17
Nominal trajectory of injected $e^-$ and extracted $e^+$ in the extraction channel of LSS6 / Gyr, Marcel (CERN)
In an earlier paper 1) it has been shown that injecting electrons and extracting positrons through the proton extraction channel is not only feasible, but it is also the most attractive of 3 alternative schemes. [...]
CERN-SPS-ABT-MG-Int-Note-82-1. - 1982. - 10 p.
Preprint

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2012-07-12
15:26
Permanent magnet quadrupoles for the CLIC Drive Beam decelerator / Shepherd, Ben (Daresbury) ; Clarke, Jim (Daresbury) ; Collomb, Norbert (Daresbury)
STFC in collaboration with CERN has developed a new type of adjustable permanent magnet based quadrupole for the CLIC Drive Beam Decelerator. [...]
CERN-OPEN-2012-018 ; CLIC-Note-940. - 2012. - 8 p.
Preprint - Full text

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2012-05-30
15:14
Design and System integration of the superconducting wiggler magnets for the CLIC Damping Rings / Schoerling, Daniel (CERN) ; Antoniou, Fanouria (CERN) ; Bernhard, Axel (KIT) ; Bragin, Alexey (BINP) ; Karppinen, Mikko (CERN) ; Maccaferri, Remo (CERN) ; Mezentsev, Nikolay (BINP) ; Rossmanith, Robert (KIT) ; Rumolo, Giovanni (CERN) ; Russenschuck, Stephan (CERN) et al.
To achieve high luminosity at the collision point of the Compact Linear Collider (CLIC) the normalized horizontal and vertical emittances of the electron and positron beams must be reduced to 500 nm and 4 nm before the beams enter the 1.5TeV linear accelerators. An effective way to accomplish ultra-low emittances with only small effects on the electron polarization is using damping rings operating at 2.86 GeV equipped with superconducting wiggler magnets. [...]
CERN-OPEN-2012-013; CLIC-Note-942.- Geneva : CERN, 2012 - 14 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 15 (2012) 042401 APS Published version, local copy: PDF; Preprint: PDF;

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2012-05-14
16:23
Present status of development of damping ring extraction kicker system for CLIC / Holma, Janne (CERN) ; Barnes, Mike (CERN) ; Belver-Aguilar, Caroline (Valencia U., IFIC) ; Faus-Golfe, Angeles (Valencia U., IFIC) ; Toral, Fernando (CIEMAT)
The CLIC damping rings will produce ultra-low emittance beam, with high bunch charge, necessary for the luminosity performance of the collider. [...]
CERN-OPEN-2012-012 ; CLIC-Note-939. - 2012. - 12 p.
Preprint - Full text

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2012-05-14
15:51
Pulse Power Modulator development for the CLIC Damping Ring Kickers / Holma, Janne (CERN) ; Barnes, Mike (CERN)
The Compact Linear Collider (CLIC) study is exploring the scheme for an electron-positron collider with high luminosity (10-34 – 10-35 cm-2s-1) and a nominal centre-of-mass energy of 3 TeV: CLIC would complement LHC physics in the multi-TeV range. [...]
CERN-OPEN-2012-011 ; CLIC-Note-938. - 2012. - 26 p.
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2011-08-23
19:45
Amorphous carbon coatings for the mitigation of electron cloud in the CERN Super Proton Synchrotron / Yin Vallgren, C (CERN) ; Arduini, G (CERN) ; Bauche, J (CERN) ; Calatroni, S (CERN) ; Chiggiato, P (CERN) ; Cornelis, K (CERN) ; Costa Pinto, P (CERN) ; Henrist, B (CERN) ; Metral, E (CERN) ; Neupert, H (CERN) et al.
Electron cloud buildup is a major limitation for high-energy particle accelerators such as the CERN Super Proton Synchrotron (SPS). Amorphous carbon thin films with low initial secondary electron yield (SEY ~ 1.0) have been applied as a mitigation material in the SPS vacuum chambers. [...]
CERN-OPEN-2011-040.- Geneva : CERN, 2011 - 11 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 14 (2011) 071001 APS Open Access article: PDF;

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2011-08-23
15:19
Preliminary design of the pulse generator for the CLIC damping ring extraction system / Holma, Janne (CERN) ; Barnes, Mike (CERN) ; Ovaska, Seppo (Aalto U.)
The spent drive beam must be cleanly extracted and bent away from the decelerator axis at the end of each CLIC decelerator in order to leave space for injecting a fresh beam train in the next sector. [...]
CERN-OPEN-2011-037 ; CLIC-Note-884. - 2011. - 7 p.
Preprint

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2011-06-01
11:14
DC breakdown experiments with cobalt electrodes / Descoeudres, Antoine (CERN) ; Djurabekova, Flyura (Helsinki Inst. of Phys. ) ; Nordlund, Kai (Helsinki Inst. of Phys. )
RF accelerating structures of the Compact Linear Collider (CLIC) require a material capable of sustaining high electric field with a low breakdown rate and low induced damage [...]
CERN-OPEN-2011-029 ; CLIC-Note-875. - 2009. - 6 p.
Preprint

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2011-05-31
15:00
2D arc-PIC code description: methods and documentation / Timko, Helga (Helsinki Inst. of Phys. ; CERN)
Vacuum discharges are one of the main limiting factors for future linear collider designs such as that of the Compact LInear Collider. [...]
CERN-OPEN-2011-027 ; CLIC-Note-872. - 2011. - 43 p.
Preprint

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2011-05-31
12:23
Crater formation by single ions, cluster ions and ion "showers" / Djurabekova, Flyura (Helsinki Inst. of Phys.) ; Samela, Juha (Helsinki Inst. of Phys.) ; Timko, Helga (CERN ; Helsinki Inst. of Phys.) ; Nordlund, Kai (Helsinki Inst. of Phys.) ; Calatroni, Sergio (CERN) ; Taborelli, Mauro (CERN) ; Wuensch, Walter (CERN)
The various craters formed by giant objects, macroscopic collisions and nanoscale impacts exhibit an intriguing resemblance in shapes. [...]
CERN-OPEN-2011-026 ; CLIC-Note-871. - 2011. - 4 p.
Preprint

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