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Title: PEP-II RF cavity revisited

Abstract

This report describes the results of numerical simulations of the PEP-II RF cavity performed after the completion of the construction phase of the project and comparisons are made to previous calculations and measured results. These analyses were performed to evaluate new calculation techniques for the HOM distribution and RF surface heating that were not available at the time of the original design. These include the use of a high frequency electromagnetic element in ANSYS and the new Omega 3P code to study wall losses, and the development of broadband time domain simulation methods in MAFIA for the HOM loading. The computed HOM spectrum is compared with cavity measurements and observed beam-induced signals. The cavity fabrication method is reviewed, with the benefit of hindsight, and simplifications are discussed.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director. Office of Science. Office of High Energy andNuclear Physics. Office of Nuclear Physics
OSTI Identifier:
877604
Report Number(s):
LBNL-45136; CBP Tech Note 197, LCC-0032
R&D Project: 455401; BnR: KA1501020; TRN: US0601418
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CONSTRUCTION; DESIGN; DISTRIBUTION; FABRICATION; HEATING; SIMULATION; PEP II RF cavity HOM

Citation Formats

Rimmer, R A, Koehler, G, Li, D, Hartman, N, Folwell, N, Hodgson, J, Ko, K, and McCandless, B. PEP-II RF cavity revisited. United States: N. p., 1999. Web. doi:10.2172/877604.
Rimmer, R A, Koehler, G, Li, D, Hartman, N, Folwell, N, Hodgson, J, Ko, K, & McCandless, B. PEP-II RF cavity revisited. United States. https://doi.org/10.2172/877604
Rimmer, R A, Koehler, G, Li, D, Hartman, N, Folwell, N, Hodgson, J, Ko, K, and McCandless, B. 1999. "PEP-II RF cavity revisited". United States. https://doi.org/10.2172/877604. https://www.osti.gov/servlets/purl/877604.
@article{osti_877604,
title = {PEP-II RF cavity revisited},
author = {Rimmer, R A and Koehler, G and Li, D and Hartman, N and Folwell, N and Hodgson, J and Ko, K and McCandless, B},
abstractNote = {This report describes the results of numerical simulations of the PEP-II RF cavity performed after the completion of the construction phase of the project and comparisons are made to previous calculations and measured results. These analyses were performed to evaluate new calculation techniques for the HOM distribution and RF surface heating that were not available at the time of the original design. These include the use of a high frequency electromagnetic element in ANSYS and the new Omega 3P code to study wall losses, and the development of broadband time domain simulation methods in MAFIA for the HOM loading. The computed HOM spectrum is compared with cavity measurements and observed beam-induced signals. The cavity fabrication method is reviewed, with the benefit of hindsight, and simplifications are discussed.},
doi = {10.2172/877604},
url = {https://www.osti.gov/biblio/877604}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 01 00:00:00 EST 1999},
month = {Mon Nov 01 00:00:00 EST 1999}
}