| Paper |
Title |
Page |
| MOP002 |
Efficient Long-Pulse, Fully Loaded CTF3 Linac Operation
|
31 |
| |
- P. Urschütz, H.-H. Braun, R. Corsini, S. Doebert, E. Jensen, F. Tecker
CERN, Geneva
|
|
| |
An efficient RF to beam energy transfer in the accelerating structures of the drive beam is on of the key points of the Compact Linear Collider (CLIC) RF power source. For this, the structures are fully beam-loaded, i.e. the accelerating gradient is nearly zero at the downstream end of each structure. In this way, about 96% of the RF energy can be transferred to the beam. To demonstrate this mode of operation, 1500 ns long beam pulses are accelerated in six fully loaded structures in the CLIC Test Facility (CTF3) Linac. In the paper we present the results of experimental studies on this mode of operation, compare them with theoretical predictions and discuss its potential use in CLIC.
|
|
| THP077 |
A High-Gradient Test of a 30-GHz Copper Accelerating Structure
|
761 |
| |
- S. Doebert, R. Corsini, R. Fandos, A. Grudiev, E. Jensen, T. Ramsvik, J. A. Rodriguez, J. P.H. Sladen, I. Syratchev, M. Taborelli, F. Tecker, P. Urschütz, I. Wilson, W. Wuensch
CERN, Geneva
- Ö.M. Mete
Ankara University, Faculty of Engineering, Tandogan, Ankara
|
|
| |
The CLIC study is investigating a number of different materials at different frequencies in order to find ways to increase achievable accelerating gradient and to understand what are the important parameters for high-gradient operation. So far a series of rf tests have been made with a set of identical-geometry 30 GHz and X-band structures in copper, tungsten and molybdenum. A new test of a 30 GHz copper accelerating structure has been completed in CTF3 with pulse lengths up to 100 ns. The new results are presented and compared to the previous structures to determine dependencies of quantities such accelerating gradient, material, frequency, pulse length, power flow, conditioning rate, breakdown rate and surface damage.
|
|