skip to main content

Title: RFQ accelerator tuning system

A cooling system is provided for maintaining a preselected operating temperature in a device, which may be an RFQ accelerator, having a variable heat removal requirement, by circulating a cooling fluid through a cooling system remote from the device. Internal sensors in the device enable an estimated error signal to be generated from parameters which are indicative of the heat removal requirement from the device. Sensors are provided at predetermined locations in the cooling system for outputting operational temperature signals. Analog and digital computers define a control signal functionally related to the temperature signals and the estimated error signal, where the control signal is defined effective to return the device to the preselected operating temperature in a stable manner. The cooling system includes a first heat sink responsive to a first portion of the control signal to remove heat from a major portion of the circulating fluid. A second heat sink is responsive to a second portion of the control signal to remove heat from a minor portion of the circulating fluid. The cooled major and minor portions of the circulating fluid are mixed in response to a mixing portion of the control signal, which is effective to proportion themore » major and minor portions of the circulating fluid to establish a mixed fluid temperature which is effective to define the preselected operating temperature for the remote device. In an RFQ environment the stable temperature control enables the resonant frequency of the device to be maintained at substantially a predetermined value during transient operations.« less
Authors:
 [1]
  1. (Albuquerque, NM)
Publication Date:
OSTI Identifier:
867446
Report Number(s):
US 4939419
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
Language:
English
Subject:
rfq; accelerator; tuning; cooling; provided; maintaining; preselected; operating; temperature; device; rfq; accelerator; variable; heat; removal; requirement; circulating; cooling; fluid; cooling; remote; device; internal; sensors; device; enable; estimated; error; signal; generated; parameters; indicative; heat; removal; requirement; device; sensors; provided; predetermined; locations; cooling; outputting; operational; temperature; signals; analog; digital; computers; define; control; signal; functionally; related; temperature; signals; estimated; error; signal; control; signal; defined; effective; return; device; preselected; operating; temperature; stable; manner; cooling; heat; sink; responsive; portion; control; signal; remove; heat; major; portion; circulating; fluid; heat; sink; responsive; portion; control; signal; remove; heat; minor; portion; circulating; fluid; cooled; major; minor; portions; circulating; fluid; mixed; response; mixing; portion; control; signal; effective; proportion; major; minor; portions; circulating; fluid; establish; mixed; fluid; temperature; effective; define; preselected; operating; temperature; remote; device; rfq; environment; stable; temperature; control; enables; resonant; frequency; device; maintained; substantially; predetermined; value; transient; operations; circulating fluid; circulating fluid; circulating fluid; circulating fluid; temperature control; remove heat; remove heat; cooling fluid; functionally related; resonant frequency; control signal; control signal; control signal; control signal; control signal; heat sink; heat sink; operating temperature; operating temperature; operating temperature; predetermined value; error signal; error signal; major portion; heat removal; heat removal; predetermined location; digital computer; operational temperature; signal functionally; fluid temperature; temperature signal; temperature signal; predetermined locations; rfq accelerator; rfq accelerator; minor portion; minor portion; minor portion; variable heat; digital computers /315/165/313/