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Title: Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Jefferson Lab

Abstract

Jefferson Lab uses feedback loops (less than 1 hertz update rate) to correct drifts in CEBAF's electron beam orbit and energy. Previous incarnations of these loops used response matrices that were computed by a numerical model of the machine. Jefferson Lab is transitioning this feedback system to use empirically determined response matrices whereby the software introduces small orbit or energy deviations using the loop's actuators and measures the system response with the loop's sensors. This method is in routine use for orbit correction. This paper will describe the orbit correction system and future plans to extend this method to energy correction.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
783623
Report Number(s):
JLAB-ACO-01-02; DOE/ER/40150-1875
TRN: US0104031
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Conference
Resource Relation:
Conference: PAC 2001, Chicago, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 1 Jun 2001
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CEBAF ACCELERATOR; ORBITS; CORRECTIONS; ACTUATORS; ELECTRON BEAMS; FEEDBACK; CONTROL SYSTEMS; DESIGN

Citation Formats

Harwood, Leigh, Hofler, Alicia, Joyce, Michele, Lebedev, Valeri, and Bryan, David. Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Jefferson Lab. United States: N. p., 2001. Web.
Harwood, Leigh, Hofler, Alicia, Joyce, Michele, Lebedev, Valeri, & Bryan, David. Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Jefferson Lab. United States.
Harwood, Leigh, Hofler, Alicia, Joyce, Michele, Lebedev, Valeri, and Bryan, David. Fri . "Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Jefferson Lab". United States. https://www.osti.gov/servlets/purl/783623.
@article{osti_783623,
title = {Empirically Determined Response Matrices for On-Line Orbit and Energy Correction at Jefferson Lab},
author = {Harwood, Leigh and Hofler, Alicia and Joyce, Michele and Lebedev, Valeri and Bryan, David},
abstractNote = {Jefferson Lab uses feedback loops (less than 1 hertz update rate) to correct drifts in CEBAF's electron beam orbit and energy. Previous incarnations of these loops used response matrices that were computed by a numerical model of the machine. Jefferson Lab is transitioning this feedback system to use empirically determined response matrices whereby the software introduces small orbit or energy deviations using the loop's actuators and measures the system response with the loop's sensors. This method is in routine use for orbit correction. This paper will describe the orbit correction system and future plans to extend this method to energy correction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2001},
month = {Fri Jun 01 00:00:00 EDT 2001}
}

Conference:
Other availability
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