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Title: Optimization of the Geometric Beta for the SSR2 Cavities of the Project X

Abstract

Project X based on the 3 GeV CW superconducting Linac and is currently in the R&D phase. The CW SC Linac starts from a low-energy SCRF section (2.1 - 165 MeV) containing three different types of resonators. HWR f = 162.5 MHz (2.1 - 11 MeV) having beta= 0.11, SSR1 f = 325 MHz (11 - 35 MeV) having beta = 0.21. In this paper we present the analysis that lead to the final design of SSR2 f = 325 MHz cavity (35 - 165 MeV). We present the results of optimization of the geometric beta and the comparison between single, double and triple spoke resonators used in Project X frontend. A {beta} optimization has been carried out for the last spoke cavity section of Project X front end. The optimization process of {beta}{sub opt} for a single spoke resonator family SSR2 shown that {beta}{sub opt} = 0.47 looks better than the previous choice, which is {beta}{sub opt} = 0.4. This change can save some cavities and provide the same final energy for this section, 160 MeV. Single double and triple spoke resonator performances have been compared. The best option is the single spoke resonator SSR2 because the NTTF ofmore » a multi-spoke resonator is much narrower than a single one. In the energy range considered (40-160 MeV) the most efficient resonator is the single spoke one.« less

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1048415
Report Number(s):
FERMILAB-CONF-12-169-TD
TRN: US1204184
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Journal Name:
Conf.Proc.C1205201:2312-2314,2012
Additional Journal Information:
Conference: Presented at the 3rd International Particle Accelerator Conference (IPAC-2012), New Orleans, Louisiana, 20-25 May 2012
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CAVITIES; DESIGN; ENERGY RANGE; LINEAR ACCELERATORS; OPTIMIZATION; RESONATORS; Accelerators

Citation Formats

Solyak, N, Vostrikov, A, Yakovlev, V P, /Fermilab, Awida, M H, Berrutti, P, Gonin, I V, and /Fermilab. Optimization of the Geometric Beta for the SSR2 Cavities of the Project X. United States: N. p., 2012. Web.
Solyak, N, Vostrikov, A, Yakovlev, V P, /Fermilab, Awida, M H, Berrutti, P, Gonin, I V, & /Fermilab. Optimization of the Geometric Beta for the SSR2 Cavities of the Project X. United States.
Solyak, N, Vostrikov, A, Yakovlev, V P, /Fermilab, Awida, M H, Berrutti, P, Gonin, I V, and /Fermilab. 2012. "Optimization of the Geometric Beta for the SSR2 Cavities of the Project X". United States.
@article{osti_1048415,
title = {Optimization of the Geometric Beta for the SSR2 Cavities of the Project X},
author = {Solyak, N and Vostrikov, A and Yakovlev, V P and /Fermilab and Awida, M H and Berrutti, P and Gonin, I V and /Fermilab},
abstractNote = {Project X based on the 3 GeV CW superconducting Linac and is currently in the R&D phase. The CW SC Linac starts from a low-energy SCRF section (2.1 - 165 MeV) containing three different types of resonators. HWR f = 162.5 MHz (2.1 - 11 MeV) having beta= 0.11, SSR1 f = 325 MHz (11 - 35 MeV) having beta = 0.21. In this paper we present the analysis that lead to the final design of SSR2 f = 325 MHz cavity (35 - 165 MeV). We present the results of optimization of the geometric beta and the comparison between single, double and triple spoke resonators used in Project X frontend. A {beta} optimization has been carried out for the last spoke cavity section of Project X front end. The optimization process of {beta}{sub opt} for a single spoke resonator family SSR2 shown that {beta}{sub opt} = 0.47 looks better than the previous choice, which is {beta}{sub opt} = 0.4. This change can save some cavities and provide the same final energy for this section, 160 MeV. Single double and triple spoke resonator performances have been compared. The best option is the single spoke resonator SSR2 because the NTTF of a multi-spoke resonator is much narrower than a single one. In the energy range considered (40-160 MeV) the most efficient resonator is the single spoke one.},
doi = {},
url = {https://www.osti.gov/biblio/1048415}, journal = {Conf.Proc.C1205201:2312-2314,2012},
number = ,
volume = ,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2012},
month = {Tue May 01 00:00:00 EDT 2012}
}

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