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Title: Adaptive control for accelerators

Abstract

An adaptive feedforward control loop is provided to stabilize accelerator beam loading of the radio frequency field in an accelerator cavity during successive pulses of the beam into the cavity. A digital signal processor enables an adaptive algorithm to generate a feedforward error correcting signal functionally determined by the feedback error obtained by a beam pulse loading the cavity after the previous correcting signal was applied to the cavity. Each cavity feedforward correcting signal is successively stored in the digital processor and modified by the feedback error resulting from its application to generate the next feedforward error correcting signal. A feedforward error correcting signal is generated by the digital processor in advance of the beam pulse to enable a composite correcting signal and the beam pulse to arrive concurrently at the cavity.

Inventors:
 [1];  [1];  [2]
  1. (Los Alamos, NM)
  2. (Santa Fe, NM)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
867665
Patent Number(s):
US 4982320
Assignee:
United States of America as represented by United States (Washington, DC) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
adaptive; control; accelerators; feedforward; loop; provided; stabilize; accelerator; beam; loading; radio; frequency; field; cavity; successive; pulses; digital; signal; processor; enables; algorithm; generate; error; correcting; functionally; determined; feedback; obtained; pulse; previous; applied; successively; stored; modified; resulting; application; generated; advance; enable; composite; arrive; concurrently; accelerator beam; control loop; digital signal; signal processor; radio frequency; beam pulse; successive pulses; adaptive control; signal functionally; accelerator cavity; signal process; frequency field; feedforward control; digital process; /700/315/

Citation Formats

Eaton, Lawrie E., Jachim, Stephen P., and Natter, Eckard F. Adaptive control for accelerators. United States: N. p., 1991. Web.
Eaton, Lawrie E., Jachim, Stephen P., & Natter, Eckard F. Adaptive control for accelerators. United States.
Eaton, Lawrie E., Jachim, Stephen P., and Natter, Eckard F. Tue . "Adaptive control for accelerators". United States. doi:. https://www.osti.gov/servlets/purl/867665.
@article{osti_867665,
title = {Adaptive control for accelerators},
author = {Eaton, Lawrie E. and Jachim, Stephen P. and Natter, Eckard F.},
abstractNote = {An adaptive feedforward control loop is provided to stabilize accelerator beam loading of the radio frequency field in an accelerator cavity during successive pulses of the beam into the cavity. A digital signal processor enables an adaptive algorithm to generate a feedforward error correcting signal functionally determined by the feedback error obtained by a beam pulse loading the cavity after the previous correcting signal was applied to the cavity. Each cavity feedforward correcting signal is successively stored in the digital processor and modified by the feedback error resulting from its application to generate the next feedforward error correcting signal. A feedforward error correcting signal is generated by the digital processor in advance of the beam pulse to enable a composite correcting signal and the beam pulse to arrive concurrently at the cavity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

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