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| WEZAB02 |
Results on CLIC Proof of Principle from CTF3
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1979 |
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The CLIC Test Facility CTF3, built at CERN by an international collaboration, aims at demonstrating the feasibility of the CLIC scheme of Multi-TeV electron-positron collider by 2010. In its final configuration CTF3 will consist of a 150 MeV drive beam linac followed by a 42 m long delay loop and an 84 m combiner ring. The installation includes a two-beam test stand and a test decelerator. The linac and delay loop have been already commissioned, while the combiner ring will be completed by the first half of 2007. High gradient testing of accelerating structures is also under way. The status of the facility, the experimental results obtained and the future plans will be presented.
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Slides
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| THPMN063 |
CTF3 Combiner Ring Commissioning
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2850 |
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- F. Tecker, R. Corsini, S. Doebert, P. K. Skowronski, P. Urschutz
CERN, Geneva
- C. Biscari, A. Ghigo
INFN/LNF, Frascati (Roma)
- E. Bressi
CNAO Foundation, Milan
- A. Ferrari
UU/ISV, Uppsala
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CLIC Test Facility 3 (CTF3) has the objective to demonstrate the remaining feasibility issues of the CLIC two-beam technology for a future multi-TeV linear collider. One key issue is the efficient generation of a very high current 'drive beam' that serves as the power source for the acceleration of the main beam to high energy. This large current beam is produced by interleaving bunches in a combiner ring using transverse deflecting RF cavities. The 84 m long CTF3 combiner ring and the connecting transfer line have been recently installed and put into operation. The latest commissioning results will be presented.
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| FROBC01 |
30 GHz High-Gradient Accelerating Structure Test Results
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3818 |
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- J. A. Rodriguez, G. Arnau-Izquierdo, R. Corsini, S. Doebert, R. Fandos, A. Grudiev, I. Syratchev, M. Taborelli, F. Tecker, P. Urschutz, W. Wuensch
CERN, Geneva
- H. Aksakal, Z. Nergiz
Ankara University, Faculty of Sciences, Tandogan/Ankara
- M. Johnson
UU/ISV, Uppsala
- O. M. Mete
Ankara University, Faculty of Engineering, Tandogan, Ankara
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The CLIC study is high power testing accelerating structures in a number of different materials and accelerating structure designs to understand the physics of breakdown, determine the appropriate scaling of performance and in particular to find ways to increase achievable accelerating gradient. The most recent 30 GHz structures which have been tested include damped structures in copper, molybdenum, titanium and aluminum. The results from these new structures are presented and compared to previous ones to determine dependencies of quantities such as achievable accelerating gradient, pulse length, power flow, conditioning rate and breakdown rate.
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Slides
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| FRPMS045 |
Non-Destructive Single Shot Bunch Length Measurements for the CLIC Test Facility 3
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4069 |
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- A. E. Dabrowski, M. Velasco
NU, Evanston
- H.-H. Braun, R. Corsini, S. Doebert, T. Lefevre, F. Tecker, P. Urschutz
CERN, Geneva
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Funding: DOE
A non-destructive bunch length detector has been installed in the CLIC Test Facility (CTF3). Using a series of down-converting mixing stages and filters, the detector analyzes the power spectrum of the electromagnetic field picked-up by a single waveguide. This detector evolved from an earlier system which was regularly used for bunch length measurements in CTF2. Major improvements are increase of frequency reach from 90 GHz to 170 GHz, allowing for sub-pico second sensitivity, and single shot measurement capability using FFT analysis from large bandwidth waveform digitisers. The results of the commissioning of the detector in 2006 are presented.
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