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Title: Measured longitudinal beam impedance of a Tevatron separator

Abstract

Twenty two separators are currently installed in the Tevatron. The longitudinal impedance of one of these devices was recently measured with a stretched wire. The stretched wire technique can only measure impedance below the cutoff frequency (500MHz). The geometry of a separator is similar to an un-terminated stripline beam position detector. The separator plates occupy a 13.5'' ID vacuum tank, are 101'' long, 7.8'' wide, and have a 2'' gap between them. The differential characteristic impedance between the plates is estimated to be 81 {Gamma} and the common mode impedance plate to ground is about 42 {Gamma}.

Authors:
;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
805558
Report Number(s):
FERMILAB-TM-2194
TRN: US0300926
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 9 Dec 2002
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM POSITION; FERMILAB TEVATRON; GEOMETRY; IMPEDANCE; PLATES

Citation Formats

Crisp, James L, and Fellenz, Brian J. Measured longitudinal beam impedance of a Tevatron separator. United States: N. p., 2002. Web. doi:10.2172/805558.
Crisp, James L, & Fellenz, Brian J. Measured longitudinal beam impedance of a Tevatron separator. United States. https://doi.org/10.2172/805558
Crisp, James L, and Fellenz, Brian J. 2002. "Measured longitudinal beam impedance of a Tevatron separator". United States. https://doi.org/10.2172/805558. https://www.osti.gov/servlets/purl/805558.
@article{osti_805558,
title = {Measured longitudinal beam impedance of a Tevatron separator},
author = {Crisp, James L and Fellenz, Brian J},
abstractNote = {Twenty two separators are currently installed in the Tevatron. The longitudinal impedance of one of these devices was recently measured with a stretched wire. The stretched wire technique can only measure impedance below the cutoff frequency (500MHz). The geometry of a separator is similar to an un-terminated stripline beam position detector. The separator plates occupy a 13.5'' ID vacuum tank, are 101'' long, 7.8'' wide, and have a 2'' gap between them. The differential characteristic impedance between the plates is estimated to be 81 {Gamma} and the common mode impedance plate to ground is about 42 {Gamma}.},
doi = {10.2172/805558},
url = {https://www.osti.gov/biblio/805558}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Dec 09 00:00:00 EST 2002},
month = {Mon Dec 09 00:00:00 EST 2002}
}