首页|High-frequency microwave cavity design for high-mass dark matter axion searches
High-frequency microwave cavity design for high-mass dark matter axion searches
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The haloscope based on the TM010 mode cavity is a well-established technique for detecting QCD axions.How-ever,the method has limitations in detecting high-mass axion due to significant volume loss in the high-frequency cavity.Utilizing a higher-order mode cavity can effectively reduce the volume loss of the high-frequency cavity.The rotatable dielectric pieces as a tuning mechanism can compensate for the degradation of the form factor of the higher-order mode.Nevertheless,the introduction of dielectric causes additional volume loss.To address these issues,this paper proposes a novel design scheme by adding a central metal rod to the higher-order mode cavity tuned by dielectrics,which improves the performance of the haloscope due to the increased effective volume of the cavity detector.The superiority of the novel design is demonstrated by comparing its simulated performance with previous designs.Moreover,the feasibility of the scheme is verified by the full-wave simulation results of the mechanical design model.
axionhaloscopemicrowave cavity
张驰、王佳、李春光、陈石广、程航、孙亮、吴云
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Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China
University of Chinese Academy of Sciences,Beijing 100049,China
Songshan Lake Materials Laboratory,Dongguan 523808,China
Hefei National Laboratory,Hefei 230088,China
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Equipment Development Project for Scientific Research of the Chinese Academy of SciencesInnovation Program for Quantum Science and Technology国家重点研发计划
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