| Paper | Title | Page |
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| WEPMA133 | Evaluation of External Q Using Kroll-Yu Method With Microwaves Studio | 503 |
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Design and development of superconducting cavity has been taken up as a part of Accelerator Driven Subcritical project(ADSS). An input coupler is designed for the same using Kroll-Yu method*. The evaluation procedure is optimized and the method has been successfully implemented for the evaluation high external Q**. The validity of the Kroll-Yu method is tested with the external Q calculations by P. Balleyguier method for the Benchmark cavtity which is a pillbox cavity of diameter ~200 mm, length ~150 mm with semi-rigid coaxial line***. It is found that the careful choice of data points provides accurate results over wide range.
* N. M.Kroll, D. U.L. Yu, "Computer determination of the external Q and resonant frequency of waveguide loadaed cavities", SLAC-PUB-5171, Jan1990(A) ** A. S.Dhavale and K. C.Mittal,"Evaluation of external Q of the superconducting cavity using Kroll-Yu method", Review Of Scientific Instruments 77, 066101 (2006)*** P. Balleyguier, "A straightforward method for cavity external Q computation", Particle Accelerators, Vol.57, P.113-127, 1997 |