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Title: Coupling interaction between the power coupler and the third harmonic superconducting cavity

Abstract

Fermilab has developed a third harmonic superconducting cavity operating at the frequency of 3.9 GHz to improve the beam performance for the FLASH user facility at DESY. It is interesting to investigate the coupling interaction between the SRF cavity and the power coupler with or without beam loading. The coupling of the power coupler to the cavity needs to be determined to minimize the power consumption and guarantee the best performance for a given beam current. In this paper, we build and analyze an equivalent circuit model containing a series of lumped elements to represent the resonant system. An analytic solution of the required power from the generator as a function of the system parameters has also been given based on a vector diagram.

Authors:
; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
922007
Report Number(s):
FERMILAB-CONF-07-295-TD
TRN: US0801071
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Journal Name:
Conf.Proc.C070625:2268,2007
Additional Journal Information:
Conference: Presented at Particle Accelerator Conference (PAC 07), Albuquerque, New Mexico, 25-29 Jun 2007
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM CURRENTS; EQUIVALENT CIRCUITS; FERMILAB; HARMONICS; PERFORMANCE; VECTORS; Accelerators

Citation Formats

Li, Jianjian, Solyak, Nikolay, /Fermilab, Wong, Thomas, and /IIT, Chicago. Coupling interaction between the power coupler and the third harmonic superconducting cavity. United States: N. p., 2007. Web.
Li, Jianjian, Solyak, Nikolay, /Fermilab, Wong, Thomas, & /IIT, Chicago. Coupling interaction between the power coupler and the third harmonic superconducting cavity. United States.
Li, Jianjian, Solyak, Nikolay, /Fermilab, Wong, Thomas, and /IIT, Chicago. 2007. "Coupling interaction between the power coupler and the third harmonic superconducting cavity". United States. https://www.osti.gov/servlets/purl/922007.
@article{osti_922007,
title = {Coupling interaction between the power coupler and the third harmonic superconducting cavity},
author = {Li, Jianjian and Solyak, Nikolay and /Fermilab and Wong, Thomas and /IIT, Chicago},
abstractNote = {Fermilab has developed a third harmonic superconducting cavity operating at the frequency of 3.9 GHz to improve the beam performance for the FLASH user facility at DESY. It is interesting to investigate the coupling interaction between the SRF cavity and the power coupler with or without beam loading. The coupling of the power coupler to the cavity needs to be determined to minimize the power consumption and guarantee the best performance for a given beam current. In this paper, we build and analyze an equivalent circuit model containing a series of lumped elements to represent the resonant system. An analytic solution of the required power from the generator as a function of the system parameters has also been given based on a vector diagram.},
doi = {},
url = {https://www.osti.gov/biblio/922007}, journal = {Conf.Proc.C070625:2268,2007},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {6}
}

Conference:
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