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Title: FAST AUTOMATED DECOUPLING AT RHIC.

Abstract

Coupling correction is essential for the operational performance of RHIC. The independence of the transverse degrees of freedom makes diagnostics and tune control easier, and it is advantageous to operate an accelerator close to the coupling resonance to minimize nearby nonlinear sidebands. An automated coupling correction application iDQmini has been developed for RHIC routine operations. The application decouples RHIC globally by minimizing the tune separation through finding the optimal settings of two orthogonal skew quadrupole families. The program iDQmini provides options of automatic, semi-automatic and manual decoupling operations. It accesses tune information from all RHIC tune measurement systems: the PLL (phase lock loop), the high frequency Schottky system and the tune meter. It also supplies tune and skew quadrupole scans, finding the minimum tune separation, display the real time results and interface with the RHIC control system. We summarize the capabilities of the coupling correction application iDQmini, and discuss the operational protections incorporated in the program.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
DOE/SC
OSTI Identifier:
15020014
Report Number(s):
BNL-73443-2005-CP
R&D Project: AD-003; KB-0202011; TRN: US0504287
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: PAC 2005 PARTICLE ACCELERATOR CONFERENCE; KNOXVILLE, TN; 20050516 through 20050520
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; CONTROL SYSTEMS; DECOUPLING; DEGREES OF FREEDOM; PERFORMANCE; QUADRUPOLES; RESONANCE

Citation Formats

BEEBE-WANG, J J. FAST AUTOMATED DECOUPLING AT RHIC.. United States: N. p., 2005. Web.
BEEBE-WANG, J J. FAST AUTOMATED DECOUPLING AT RHIC.. United States.
BEEBE-WANG, J J. Mon . "FAST AUTOMATED DECOUPLING AT RHIC.". United States. https://www.osti.gov/servlets/purl/15020014.
@article{osti_15020014,
title = {FAST AUTOMATED DECOUPLING AT RHIC.},
author = {BEEBE-WANG, J J},
abstractNote = {Coupling correction is essential for the operational performance of RHIC. The independence of the transverse degrees of freedom makes diagnostics and tune control easier, and it is advantageous to operate an accelerator close to the coupling resonance to minimize nearby nonlinear sidebands. An automated coupling correction application iDQmini has been developed for RHIC routine operations. The application decouples RHIC globally by minimizing the tune separation through finding the optimal settings of two orthogonal skew quadrupole families. The program iDQmini provides options of automatic, semi-automatic and manual decoupling operations. It accesses tune information from all RHIC tune measurement systems: the PLL (phase lock loop), the high frequency Schottky system and the tune meter. It also supplies tune and skew quadrupole scans, finding the minimum tune separation, display the real time results and interface with the RHIC control system. We summarize the capabilities of the coupling correction application iDQmini, and discuss the operational protections incorporated in the program.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {5}
}

Conference:
Other availability
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