| Article | |
| Report number | CERN-AB-2004-040-RF ; CLIC-Note-597 ; SLAC-PUB-11033 |
| Title | A High-Power Test of an X-Band Molybdenum-Iris Structure |
| Author(s) | Wuensch, Walter (CERN) ; Döbert, Steffen (SLAC) ; Grudiev, A (CERN) ; Heikkinen, Samuli Tapio (CERN) ; Syratchev, I V (CERN) ; Taborelli, M (CERN) ; Wilson, Ian H (CERN) ; Adolphsen, C E (SLAC) |
| Publication | 2004 |
| Imprint | 26 Aug 2004 |
| Number of pages | 4 |
| In: | 22nd International Linear Accelerator Conference, Lubeck, Germany, 16 - 20 Aug 2004, pp.678 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CLIC |
| Abstract | In order to achieve accelerating gradients above 150 MV/m, alternative materials to copper are being investigated by the CLIC study. The potential of refractory metals has already been demonstrated in tests in which a tungsten-iris and a molybdenum-iris structure reached 150 and 193 MV/m respectively (30 GHz and a pulse length of 15 ns). In order to extend the investigation to the pulse lengths required for a linear collider, a molybdenum-iris structure scaled to X-band was tested at the Next Linear Collider Test Accelerator (NLCTA). The structure conditioned to only 65 MV/m (100 ns pulse length) in the available testing time and much more slowly than is typical of a copper structure. However the structure showed no sign of saturation and a microscopic inspection of the rf surfaces corroborated that the structure was still at an early stage of conditioning. The X-band and 30 GHz results are compared and what has been learned about material quality, surface preparation and conditioning strategy is discussed. |
| Copyright/License | publication: (License: CC-BY) |
Corresponding record in: Inspire
Email contact: Lidia.Ghilardi@cern.ch
Record created 2004-08-27, last modified 2024-10-25
PDF