Transverse impedance bench measurements in NLC/JLC accelerating structures
N Baboi, GB Bowden, RM Jones… - Proceedings of the …, 2003 - ieeexplore.ieee.org
N Baboi, GB Bowden, RM Jones, SG Tantawi, JR Lewandowski
Proceedings of the 2003 Particle Accelerator Conference, 2003•ieeexplore.ieee.orgThe wire method is a more rapid and less costly method to measure impedances of RF
components compared to methods using a beam. A setup using a single displaced wire to
excite and measure transverse resonant modes in accelerating structures for the Next Linear
Collider/Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into
and out of the structure using two matching sections with a broadband frequency from 11 to
18 GHz. Their contribution to the scattering parameter is minimized by a calibration …
components compared to methods using a beam. A setup using a single displaced wire to
excite and measure transverse resonant modes in accelerating structures for the Next Linear
Collider/Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into
and out of the structure using two matching sections with a broadband frequency from 11 to
18 GHz. Their contribution to the scattering parameter is minimized by a calibration …
The wire method is a more rapid and less costly method to measure impedances of RF components compared to methods using a beam. A setup using a single displaced wire to excite and measure transverse resonant modes in accelerating structures for the Next Linear Collider/ Japanese Linear Collider (NLC/JLC) has been built. The RF signal is coupled into and out of the structure using two matching sections with a broadband frequency from 11 to 18 GHz. Their contribution to the scattering parameter is minimized by a calibration technique. A standing wave structure has been measured. Difficulties in accurately predicting the modal loss factors were encountered related to the approximations made and to experimental issues. The measurements are presented and comparisons with simulations are made.
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