The CEBAF Fast Shutdown System

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Because of the high power in the CEBAF beam, equipment must be protected in the event of beam loss. The policy that has been adopted is to require a positive permissive signal from each of several inputs in order to operate the gun that starts the beam. If the permissive is removed, the gun shuts off within 20 micro-seconds. \nThe inputs that are not monitored include (1) radiation monitors that detect beam loss directly, (2) vacuum monitors (which also observe the status of various in-line valves), and (3) general input from the rf system, which combines detection of klystron failure, ... continued below

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page(s) 28-33

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Perry, John September 1, 1990.

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Description

Because of the high power in the CEBAF beam, equipment must be protected in the event of beam loss. The policy that has been adopted is to require a positive permissive signal from each of several inputs in order to operate the gun that starts the beam. If the permissive is removed, the gun shuts off within 20 micro-seconds. \nThe inputs that are not monitored include (1) radiation monitors that detect beam loss directly, (2) vacuum monitors (which also observe the status of various in-line valves), and (3) general input from the rf system, which combines detection of klystron failure, arcs, and rf window high temperature. The system is expandable, so other fault detectors can be added if experience shows their necessity.

Physical Description

page(s) 28-33

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  • Poster compiled for Linear Accelerator Conference, LINAC 90, Albuquerque, N.Mex, Sep 10-14, 1990

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  • Report No.: CEBAF-PR-90-15
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 954156
  • Archival Resource Key: ark:/67531/metadc933492

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 1990

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 2, 2016, 9:04 p.m.

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Perry, John. The CEBAF Fast Shutdown System, article, September 1, 1990; [Newport News, Virginia]. (digital.library.unt.edu/ark:/67531/metadc933492/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.