Impedance and loss factor measurements on a CLIC transfer structure (CTS)

Previous measurements were done by creating with low-impedance transmission line TEM fields around coupling holes such as those accompanying real bunchlets. This first approach made it possible to simulate the output power pulse from the CTS. Similarly, in the second approach (wire measurement), TEM waves are created but with a high impedance line in the middle of the chamber. Simulations are made not only of the power output signals but also of the beam wakes. A comparison of the wire input and output signals yields the CTS chamber beam impedance and k-factors (loss factors). (author) 6 refs.; 6 figs