Adaptive control for accelerators

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867665

Eaton, Lawrie E ^[1]; Jachim, Stephen P ^[1]; Natter, Eckard F ^[2]

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1. Los Alamos, NM
2. Santa Fe, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4982320
• OSTI ID: 867665
• Country of Publication: United States
• Language: English

Related Subjects

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
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