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WEOCA02 |
Recent Results from CTF3 Two Beam Test Stand |
1880 |
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- W. Farabolini, F. Peauger
CEA/DSM/IRFU, France
- Ch. Borgmann, J. Ögren, R.J.M.Y. Ruber
Uppsala University, Uppsala, Sweden
- R. Corsini, D. Gamba, A. Grudiev, M.A. Khan, S. Mazzoni, J.L. Navarro Quirante, R. Pan, J.R. Towler, N. Vitoratou, K. Yaqub
CERN, Geneva, Switzerland
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From mid-2012, the Two Beam Test Stand (TBTS) in the CTF3 Experimental Facility is hosting 2 high gradient accelerating structures powered by a single power extraction and transfer structure in a scheme very close to the CLIC basic cell. We report here about the results obtained with this configuration as: energy gain and energy spread in relation with RF phases and power, octupolar transverse beam effects compared with modeling predictions, breakdown rate and breakdown locations within the structures. These structures are the first to be fitted with Wake Field Monitors (WFM) that have been extensively tested and used to further improve the structures alignment on the beam line. These results show the unique capabilities of this test stand to conduct experiments with real beams.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-WEOCA02
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WEPME015 |
High-gradient Test Results from a CLIC Prototype Accelerating Structure: TD26CC |
2285 |
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- W. Wuensch, A. Degiovanni, S. Döbert, W. Farabolini, A. Grudiev, J.W. Kovermann, E. Montesinos, G. Riddone, I. Syratchev, R. Wegner
CERN, Geneva, Switzerland
- A. Solodko
JINR, Dubna, Moscow Region, Russia
- B.J. Woolley
Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
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The CLIC study has progressively tested prototype accelerating structures which incorporate an ever increasing number of features which are needed for a final version installed in a linear collider. The most recent high power test made in the CERN X-band test stand, Xbox-1, is a of a CERN-built prototype which includes damping features but also compact input and output power couplers, which maximize the overall length to active gradient ratio of the structure. The structure’s high-gradient performance, 100 MV/m and low breakdown rate, matches previously tested structures validating both CERN fabrication and the compact coupler design.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME015
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WEPME016 |
Experience Operating an X-band High-Power Test Stand at CERN |
2288 |
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- W. Wuensch, N. Catalán Lasheras, A. Degiovanni, S. Döbert, W. Farabolini, J.W. Kovermann, G. McMonagle, S.F. Rey, I. Syratchev, L. Timeo
CERN, Geneva, Switzerland
- J. Tagg
National Instruments Switzerland, Ennetbaden, Switzerland
- B.J. Woolley
Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
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CERN has constructed and is operating a klystron-based X-band test stand, called Xbox-1, dedicated to the high-gradient testing of prototype accelerating structures for CLIC and other applications such as FELs. The test stand has now been in operation for a year and significant progress has been made in understanding the system, improving its reliability, upgrading hardware and implementing automatic algorithms for conditioning the accelerating structures. This experience is reviewed.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME016
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Export • |
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