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Title: PRINCIPLE OF SKEW QUADRUPOLE MODULATION TO MEASURE BETATRON COUPLING.

Abstract

The measurement of the residual betatron coupling via skew quadrupole modulation is a new diagnostics technique that has been developed and tested at the Relativistic Heavy Ion Collider (RHIC) as a very promising method for the linear decoupling on the ramp. By modulating the strengths of different skew quadrupole families the two eigentunes are precisely measured with the phase lock loop system. The projections of the residual coupling coefficient onto the skew quadrupole coupling modulation directions are determined. The residual linear coupling could be corrected according to the measurement. An analytical solution for skew quadrupole modulation based on Hamiltonian perturbation approximation is given, and simulation code using smooth accelerator model is also developed. Some issues concerning the practical applications of this technique are discussed.

Authors:
Publication Date:
Research Org.:
BROOKHAVEN NATIONAL LABORATORY (US)
Sponsoring Org.:
DOE/OFFICE OF SCIENCE (US)
OSTI Identifier:
15007987
Report Number(s):
BNL-72046-2004-CP
R&D Project: AD-002-ADOP; KB020204; TRN: US0402936
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: 2004 EUROPEAN PARTICLE ACCELERATOR CONFERENCE (EPAC-04), LUCERNE (CH), 07/05/2004--07/09/2004; Other Information: PBD: 5 Jul 2004
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ANALYTICAL SOLUTION; BETATRONS; DECOUPLING; HAMILTONIANS; HEAVY IONS; MODULATION; QUADRUPOLES; SIMULATION

Citation Formats

LUO.Y.PILAT,F.ROSER,T.ET AL. PRINCIPLE OF SKEW QUADRUPOLE MODULATION TO MEASURE BETATRON COUPLING.. United States: N. p., 2004. Web.
LUO.Y.PILAT,F.ROSER,T.ET AL. PRINCIPLE OF SKEW QUADRUPOLE MODULATION TO MEASURE BETATRON COUPLING.. United States.
LUO.Y.PILAT,F.ROSER,T.ET AL. Mon . "PRINCIPLE OF SKEW QUADRUPOLE MODULATION TO MEASURE BETATRON COUPLING.". United States. https://www.osti.gov/servlets/purl/15007987.
@article{osti_15007987,
title = {PRINCIPLE OF SKEW QUADRUPOLE MODULATION TO MEASURE BETATRON COUPLING.},
author = {LUO.Y.PILAT,F.ROSER,T.ET AL.},
abstractNote = {The measurement of the residual betatron coupling via skew quadrupole modulation is a new diagnostics technique that has been developed and tested at the Relativistic Heavy Ion Collider (RHIC) as a very promising method for the linear decoupling on the ramp. By modulating the strengths of different skew quadrupole families the two eigentunes are precisely measured with the phase lock loop system. The projections of the residual coupling coefficient onto the skew quadrupole coupling modulation directions are determined. The residual linear coupling could be corrected according to the measurement. An analytical solution for skew quadrupole modulation based on Hamiltonian perturbation approximation is given, and simulation code using smooth accelerator model is also developed. Some issues concerning the practical applications of this technique are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {7}
}

Conference:
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