Multipacting Simulation Study for 56 MHz Quarter Wave Resonator using 2D Code

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A beam excited 56 MHz Radio Frequency (RF) Niobium Quarter Wave Resonator (QWR) has been proposed to enhance RHIC beam luminosity and bunching. Being a RF cavity, multipacting is expected; therefore an extensive study was carried out with the Multipac 2.1 2D simulation code. The study revealed that multipacting occurs in various bands up to peak surface electric field 50 kV/m and is concentrated mostly above the beam gap and on the outer conductor. To suppress multipacting, a ripple structure was introduced to the outer conductor and the phenomenon was successfully eliminated from the cavity.

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Naik,D. & Ben-Zvi, I. January 2, 2009.

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A beam excited 56 MHz Radio Frequency (RF) Niobium Quarter Wave Resonator (QWR) has been proposed to enhance RHIC beam luminosity and bunching. Being a RF cavity, multipacting is expected; therefore an extensive study was carried out with the Multipac 2.1 2D simulation code. The study revealed that multipacting occurs in various bands up to peak surface electric field 50 kV/m and is concentrated mostly above the beam gap and on the outer conductor. To suppress multipacting, a ripple structure was introduced to the outer conductor and the phenomenon was successfully eliminated from the cavity.

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  • Report No.: BNL--81971-2009-IR
  • Grant Number: DE-AC02-98CH10886
  • DOI: 10.2172/946779 | External Link
  • Office of Scientific & Technical Information Report Number: 946779
  • Archival Resource Key: ark:/67531/metadc899411

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  • January 2, 2009

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 1, 2016, 5:46 p.m.

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Naik,D. & Ben-Zvi, I. Multipacting Simulation Study for 56 MHz Quarter Wave Resonator using 2D Code, report, January 2, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc899411/: accessed August 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.