Coupler design for an L-band electron linac

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ZHAO Wei, TANG Xiao, SHI Rong-Jian and HOU Mi. Coupler design for an L-band electron linac[J]. Chinese Physics C, 2012, 36(8): 765-768. doi: 10.1088/1674-1137/36/8/015
ZHAO Wei, TANG Xiao, SHI Rong-Jian and HOU Mi. Coupler design for an L-band electron linac[J]. Chinese Physics C, 2012, 36(8): 765-768.  doi: 10.1088/1674-1137/36/8/015 shu
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Received: 2011-10-21
Revised: 1900-01-01
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Coupler design for an L-band electron linac

    Corresponding author: SHI Rong-Jian,

Abstract: The RF coupler is a key component for an accelerating structure which is the most important component for a linac. In order to feed microwave power into the accelerating cavities effectively, the coupler has to be well matched with the feeding waveguide. In this paper, an electron linac coupler was designed, constructed and tested. A numerical simulation method based on the Kyhl's method was employed to search for the optimal dimensions of the coupler. The frequency and the coupling coefficient as a function of the coupler dimensions were also calculated. The results fitted the Kyhl's method simulation results well and gave tolerances of the coupler. The coupler was brazed to the accelerating cavities and it was cold-tested and hot-tested. The experimental results were consistent with the numerical simulation results.

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