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PERTURBATIVE APPROACH FOR FAST AND ACCURATE EVALUATION OF QUASI AXIALLY-SYMMETRIC CAVITY RESONANCE FREQUENCY IN DRIFT TUBE LINACS

By G. S. Mauro, S. C. Pavone, G. Torrisi, A. Palmieri, L. Celona, S. Gammino, and G. Sorbello

Full Article PDF (301 KB)

Abstract:
In this paper we present an analytical method, employable with commercial full-wave electromagnetic CADs, which allows full-wave simulations of electromagnetically (EM) large structures, in terms of wavelength, such as linear accelerator cavities (LINACs) and a very accurate estimation of their operating frequency. The proposed technique is based on the exploitation of rotational symmetry through the definition of equivalent axially-symmetric volumes which replaces the non axially-symmetric ones inside the structure being analyzed. After a theoretical study, we show the successful application of the method in the real case study of a Drift Tube Linac (DTL) cell.

Citation:
G. S. Mauro, S. C. Pavone, G. Torrisi, A. Palmieri, L. Celona, S. Gammino, and G. Sorbello, "Perturbative Approach for Fast and Accurate Evaluation of Quasi Axially-Symmetric Cavity Resonance Frequency in Drift Tube Linacs," Progress In Electromagnetics Research M, Vol. 93, 109-118, 2020.
doi:10.2528/PIERM20020702
http://www.jpier.org/pierm/pier.php?paper=20020702

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