CERN Accelerating science

BE Preprints

Najnovije dodano:
2014-04-11
09:28
Advances in the Understanding of the Physical Processes of Vacuum Breakdown / Wuensch, Walter (CERN)
Advances in the fundamental understanding of vacuum breakdown achieved during the program to develop high-gradient accelerating structures for a TeV-range linear collider project are described..
CERN-OPEN-2014-028 ; CLIC-Note-1025.
- 2013. - 18 p.
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2014-03-14
16:06
Conceptual design of the post-PETS instrumentation line for CLIC / Olvegård, Maja (Uppsala U.) ; Ziemann, Volker (Uppsala U.)
We propose a method to measure the time-resolved momentum distribution and beam size at the end of the decelerator in the drive beam complex of the Compact Linear Collider, CLIC [...]
CERN-OPEN-2014-026 ; CLIC-Note-1024.
- 2013. - 13 p.
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2013-12-11
14:45
Beam-loading Compensation Experiment in the CLIC Test Facility. Modelling and Simulation / Kononenko, Oleksiy (CERN ; SLAC) ; Corsini, Roberto (CERN) ; Grudiev, Alexej (CERN) ; Tecker, Frank (CERN)
Transient beam-loading in the main linac is an important performance issue for a Compact Linear Collider (CLIC) study [...]
CERN-OPEN-2013-039 ; CLIC-Note-987.
- 2013. - 15 p.
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2013-12-04
17:57
The ELENA Electron Cooler: Parameter choice and expected performance / Tranquille, G ; Frassier, A ; Joergensen, L
Electron cooling will be central to the success of the ELENA project which aims to increase by a factor of up to 100 the number of antiprotons available for the trap experiments. [...]
CERN-BE-2013-004.
- 2013. - 3 p.
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2013-11-07
12:12
RF-Breakdown kicks at the CTF3 two-beam test stand / Palaia, Andrea (CERN) ; Jacewicz, Marek (CERN) ; Muranaka, Tomoko (CERN) ; Ruber, Roger (CERN) ; Ziemann, V (Uppsala U.) ; Farabolini, W (IRFU, Saclay)
The measurement of the effects of RF-breakdown on the beam in CLIC prototype accelerator structures is one of the key aspects of the CLIC two-beam acceleration scheme being addressed at the Two-beam Test Stand (TBTS) at CTF3. RF-breakdown can randomly cause energy loss and transverse kicks to the beam [...]
CERN-OPEN-2013-038; CLIC-Note-983.- Geneva : CERN, 2012 - 4 p. Preprint: PDF; Published version from JaCoW: PDF;
In : 3rd International Particle Accelerator Conference 2012, New Orleans, LA, USA, 20 - 25 May 2012, pp.73

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2013-10-29
10:34
Two-Beam Linear Colliders - Special Issues / Corsini, Roberto (CERN)
The path towards a multi-TeV e+e- linear collider proposed by the CLIC study is based on the Two-Beam Acceleration (TBA) scheme. Such a scheme is promising in term of efficiency, reliability and cost. [...]
CERN-OPEN-2013-036; CLIC-Note-798.- Geneva : CERN, 2010 - 6 p. Published version fron PAC'09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TH3GBI01

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2013-10-28
17:36
Quantitative Outgassing studies in DC Electrical breakdown / Levinsen, Yngve Inntjore (Oslo U. ; CERN) ; Descoeudres, A (CERN) ; Calatroni, Sergio (CERN) ; Taborelli, Mauro (CERN) ; Wünsch, Walter (CERN)
Breakdown in the accelerating structures sets an important limit to the performance of the CLIC linear collider. Vacuum degradation and subsequent beam instability are possible outcomes of a breakdown if too much gas is released from the cavity surface. [...]
CERN-OPEN-2013-035; CLIC-Note-797.- Geneva : CERN, 2010 - 4 p. Published version from PAC'09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.TU5PFP013

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2013-10-28
16:46
Results from the CLIC X-BAND structure test program at the NLCTA / Adolphsen, Chris (SLAC) ; Bowden, Gordon (SLAC) ; Dolgashev, Valery (SLAC) ; Laurent, Lisa (SLAC) ; Tantawi, Sami (SLAC) ; Wang, Faya (SLAC) ; Wang, W Juwen (SLAC) ; Doebert, Steffen (CERN) ; Grudiev, Alexej (CERN) ; Riddone, Germana (CERN) et al.
As part of a SLAC-CERN-KEK col­lab­o­ra­tion on high gra­di­ent X-band struc­ture re­search, sev­er­al pro­to­type struc­tures for the CLIC lin­ear col­lid­er study have been test­ed using two of the high power (300 MW) X-band rf sta­tions in the NLCTA fa­cil­i­ty at SLAC. These struc­tures dif­fer in terms of their man­u­fac­tur­ing (brazed disks and clamped quad­rants), gra­di­ent pro­file (amount by which the gra­di­ent in­creas­es along the struc­ture which op­ti­mizes ef­fi­cien­cy and max­i­mizes sus­tain­able gra­di­ent) and HOM damp­ing (use of slots or waveg­uides to rapid­ly dis­si­pate dipole mode en­er­gy). [...]
CERN-OPEN-2013-033; SLAC-PUB-13697; CLIC-Note-799.- Geneva : CERN, 2010 - 4 p. Preprint: PDF; External link: Published version from PAC09
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE5PFP018

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2013-10-25
17:07
LHC and CLIC LLRF final reports / Dexter, A (ULAN-CI) ; Burt, G (ULAN-CI) ; Woolley, B (ULAN-CI) ; Ambattu, P (ULAN-CI) ; Tahir, I (ULAN-CI) ; Syratchev, Igor (CERN) ; Wuensch, Walter (CERN)
Crab cavities rotate bunches from opposing beams to achieve effective head-on collision in CLIC or collisions at an adjustable angle in LHC [...]
CERN-OPEN-2013-032 ; CLIC-Note-994.
- 2013. - 85 p.
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2013-10-23
14:57
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 p.
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