Author: Ahmadi, E.
Paper Title Page
TUPAB244 THE WAKEFIELD STUDY OF THE RF-SHIELDED BELLOWS AT THE ILSF STORAGE RING 2015
 
  • N. Khosravi, E. Ahmadi, M. Akhyani
    ILSF, Tehran, Iran
  • M. Akhyani
    EPFL, Lausanne, Switzerland
  • A. Khosravi
    LAPRI, Tehran, Iran
 
  The corrugated geometry of the bellows made it critical to be shielded with an RF-Shield. Different types of RF shields can be applied to the ILSF vacuum chamber to cover this component’s destructive impedance peaks. Then, the Impedance study and optimization of the RF shields can improve the impedance budget. In this article, two common types of RF shields are simulated in CST software.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB244  
About • paper received ※ 16 May 2021       paper accepted ※ 02 June 2021       issue date ※ 14 August 2021  
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TUPAB245 WAKEFIELD AND HEAT LOAD STUDY OF THE GATE VALVES AT ILSF STORAGE RING 2018
 
  • N. Khosravi, E. Ahmadi, M. Akhyani
    ILSF, Tehran, Iran
  • M. Akhyani
    EPFL, Lausanne, Switzerland
  • S. Dastan
    IPM, Tehran, Iran
  • A. Khosravi
    LAPRI, Tehran, Iran
 
  As one part of the ILSF storage ring, the rf-shield of the gate valves generates considerable interest in terms of wake impedance and heat-load. Inside the gate valves, there is a vacuity, which causes low frequencies resonances, and it can lead to beam instabilities. Therefore, controlling and eliminating these frequencies will be substantial. A radio frequency rf-shield structure, which conceals this transverse gap of the gate valves, is indispensable for low emittance chambers. This paper analyzes the wake impedance and thermal behavior of a finger-band RF shield in the gate valve.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB245  
About • paper received ※ 16 May 2021       paper accepted ※ 14 June 2021       issue date ※ 13 August 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)