| Preprint | |
| Report number | CERN-ACC-2018-0030 ; CLIC-Note-1080 |
| Title | High power testing of a prototype clic structure: Td26cc r05 n3 |
| Author(s) | Lucas, Thomas Geoffrey (University of Melbourne (AU)) ; Volpi, Matteo (University of Melbourne (AU)) ; Giansiracusa, Paul Joseph (University of Melbourne (AU)) ; Rassool, Roger Paul (Australian Synchrotron (AU)) ; Argyropoulos, Theodoros (CERN) ; Bursali, Hikmet (CERN) ; Catalan-Lasheras, Nuria (CERN) ; Grudiev, Alexej (CERN) ; Mcmonagle, Gerard (CERN) ; Syrachev, Igor (CERN) ; Wegner, Rolf (CERN) ; Woolley, Ben (CERN) ; Wuensch, Walter (CERN) ; Esperante-Pereira, Daniel (Instituto de Fisica Corpuscular (IFIC), Spain) ; Boland, Mark James (University of Saskatchewan, Canada) |
| Publication | 2018 |
| Imprint | 19 Sep 2018 |
| Number of pages | 9 |
| Subject category | Accelerators and Storage Rings |
| Study | CLIC |
| Abstract | Testing of high gradient accelerating structure prototypes for the Compact Linear Collider is ongoing at CERN. High power testing of the baseline structure CLIC-G, also known as TD26CC R05, from the most recent concept design review was conducted on CERN’s second X- band test stand, Xbox 2. Several months of conditioning resulted in an ultimate unloaded gradient of 110 MV/m, the highest achieved for a structure with higher-order mode damping, with a 170ns flat-top RF pulse and operating with a breakdown rate of 2 ×10−5 breakdowns/pulse/metre. Investigations of the breakdown distribution demonstrated homogenous breakdown behaviour throughout the structure when fields were below 110 MV/m. After high power testing, a measurement of the RF parameters of the structure illustrated a significant change in the S- parameters consequential of a detuning of the cells, equating to a 1 MHz shift in the frequency. |
| Submitted by | [email protected] |
Zapis kreiran 2018-10-09, zadnja izmjena 2024-10-25
