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Title: Resonant circuit which provides dual frequency excitation for rapid cycling of an electromagnet

Abstract

Disclosed is a ring magnet control circuit that permits synchrotron repetition rates much higher than the frequency of the cosinusoidal guide field of the ring magnet during particle acceleration. the control circuit generates cosinusoidal excitation currents of different frequencies in the half waves. During radio frequency acceleration of the particles in the synchrotron, the control circuit operates with a lower frequency cosine wave and thereafter the electromagnets are reset with a higher frequency half cosine wave. Flat-bottom and flat-top wave shaping circuits maintain the magnetic guide field in a relatively time-invariant mode during times when the particles are being injected into the ring magnets and when the particles are being ejected from the ring magnets.

Inventors:
 [1]
  1. (Palos Park, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
865165
Patent Number(s):
4472755
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
resonant; circuit; provides; dual; frequency; excitation; rapid; cycling; electromagnet; disclosed; magnet; control; permits; synchrotron; repetition; rates; cosinusoidal; guide; field; particle; acceleration; generates; currents; frequencies; half; waves; radio; particles; operates; cosine; wave; thereafter; electromagnets; reset; flat-bottom; flat-top; shaping; circuits; maintain; magnetic; relatively; time-invariant; mode; times; injected; magnets; ejected; repetition rates; circuit generates; resonant circuit; control circuit; repetition rate; radio frequency; sine wave; circuit operates; guide field; magnetic guide; cosine wave; particle accelera; dual frequency; /361/315/331/

Citation Formats

Praeg, Walter F. Resonant circuit which provides dual frequency excitation for rapid cycling of an electromagnet. United States: N. p., 1984. Web.
Praeg, Walter F. Resonant circuit which provides dual frequency excitation for rapid cycling of an electromagnet. United States.
Praeg, Walter F. Sun . "Resonant circuit which provides dual frequency excitation for rapid cycling of an electromagnet". United States. https://www.osti.gov/servlets/purl/865165.
@article{osti_865165,
title = {Resonant circuit which provides dual frequency excitation for rapid cycling of an electromagnet},
author = {Praeg, Walter F.},
abstractNote = {Disclosed is a ring magnet control circuit that permits synchrotron repetition rates much higher than the frequency of the cosinusoidal guide field of the ring magnet during particle acceleration. the control circuit generates cosinusoidal excitation currents of different frequencies in the half waves. During radio frequency acceleration of the particles in the synchrotron, the control circuit operates with a lower frequency cosine wave and thereafter the electromagnets are reset with a higher frequency half cosine wave. Flat-bottom and flat-top wave shaping circuits maintain the magnetic guide field in a relatively time-invariant mode during times when the particles are being injected into the ring magnets and when the particles are being ejected from the ring magnets.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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