|TUP086||Frequency Tuning System Based on Mobile Plungers For Superconductive Coaxial Half Wave Resonators||664|
The design of a prototype of the frequency tuning system (FTS) for superconductive coaxial half wave cavities (HWR)  developed for the Nuclotron-based Ion Collider fAcility (NICA) injector is presented. The proposed system is based on mobile plungers placed in the technological holes in the end caps of the resonator. The FTS allows controlling the penetration depth of plungers, which is monotonically related to the resonant frequency shift of the cavity. The developed FTS includes slow/fast tuner parts and is more compact and simple in comparison to traditional mechanical systems, which deform reversibly the HWR by applying an effort on the beam ports . The similar plunger-based tuner design was considered for QWR cavities in . The results of numerical simulations of the resonant frequency for a wide range of plunger parameters are presented and discussed. The most important parameters for effective frequency shift are estimated.
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|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-SRF2019-TUP086|
|About •||paper received ※ 22 June 2019 paper accepted ※ 30 June 2019 issue date ※ 14 August 2019|
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