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Title: Direct Measurement of the Transverse Wakefields of Tapered Collimators

Abstract

We report on a recent set of measurements of the transverse wakefields from longitudinally-tapered collimators. The measurements were performed with a low-emittance 1.19 GeV beam in the SLAC linac by inserting a collimator aperture into the beam path and reconstructing the vertical deflection of the beam as a function of the vertical position of the aperture. Each collimator in the experiment was designed to present a relatively large transverse impedance and to minimize the impedance from other contributions such as resistivity. In addition, the collimator parameters were chosen to provide some insight into the scaling of the transverse geometric wakefield as a function of the collimator's geometry. Description of the experimental apparatus and the aperture design, method of data collection and analysis, and comparison to theoretical and numerical predictions are presented.

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
897443
Report Number(s):
SLAC-PUB-12086
TRN: US0701510
DOE Contract Number:
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Submitted to Physical Review Special Topics -- Accelerators and Beams
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; APERTURES; COLLIMATORS; DESIGN; GEOMETRY; IMPEDANCE; LINEAR ACCELERATORS; STANFORD LINEAR ACCELERATOR CENTER; Accelerators,ACCPHY

Citation Formats

Tenenbaum, P., Bane, K.L.F., Eriksson, L., Irwin, J., Jobe, R.K., McCormick, D., Ng, C.K., Raubenheimer, T.O., Ross, M.C., Stupakov, G., Walz, D., and /SLAC. Direct Measurement of the Transverse Wakefields of Tapered Collimators. United States: N. p., 2007. Web. doi:10.1103/PhysRevSTAB.10.034401.
Tenenbaum, P., Bane, K.L.F., Eriksson, L., Irwin, J., Jobe, R.K., McCormick, D., Ng, C.K., Raubenheimer, T.O., Ross, M.C., Stupakov, G., Walz, D., & /SLAC. Direct Measurement of the Transverse Wakefields of Tapered Collimators. United States. doi:10.1103/PhysRevSTAB.10.034401.
Tenenbaum, P., Bane, K.L.F., Eriksson, L., Irwin, J., Jobe, R.K., McCormick, D., Ng, C.K., Raubenheimer, T.O., Ross, M.C., Stupakov, G., Walz, D., and /SLAC. Tue . "Direct Measurement of the Transverse Wakefields of Tapered Collimators". United States. doi:10.1103/PhysRevSTAB.10.034401. https://www.osti.gov/servlets/purl/897443.
@article{osti_897443,
title = {Direct Measurement of the Transverse Wakefields of Tapered Collimators},
author = {Tenenbaum, P. and Bane, K.L.F. and Eriksson, L. and Irwin, J. and Jobe, R.K. and McCormick, D. and Ng, C.K. and Raubenheimer, T.O. and Ross, M.C. and Stupakov, G. and Walz, D. and /SLAC},
abstractNote = {We report on a recent set of measurements of the transverse wakefields from longitudinally-tapered collimators. The measurements were performed with a low-emittance 1.19 GeV beam in the SLAC linac by inserting a collimator aperture into the beam path and reconstructing the vertical deflection of the beam as a function of the vertical position of the aperture. Each collimator in the experiment was designed to present a relatively large transverse impedance and to minimize the impedance from other contributions such as resistivity. In addition, the collimator parameters were chosen to provide some insight into the scaling of the transverse geometric wakefield as a function of the collimator's geometry. Description of the experimental apparatus and the aperture design, method of data collection and analysis, and comparison to theoretical and numerical predictions are presented.},
doi = {10.1103/PhysRevSTAB.10.034401},
journal = {Submitted to Physical Review Special Topics -- Accelerators and Beams},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 09 00:00:00 EST 2007},
month = {Tue Jan 09 00:00:00 EST 2007}
}