Electronic Systems for Beam Position Monitors at CEBAF

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The Continuous Electron Beam Accelerator Facility (CEBAF), presently under construction, consists of a pair of .4 GeV recirculating linacs and will produce a 4 GeV CW beam with average currents of up to 200 micro-amp. Because the accelerator is recirculating, multiple beams of different energies are present simultaneously in the linac beamlines. In these sections, it is required that the position of each different energy beam be measured separately. To achieve this, the electron beam itself must be modulated in time in such a way that each different energy beam in the linacs induces signals on the beam position monitors ... continued below

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page(s) 28-33

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Heefner, Jay; Perry, John & Barry, Walter October 1, 1990.

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Description

The Continuous Electron Beam Accelerator Facility (CEBAF), presently under construction, consists of a pair of .4 GeV recirculating linacs and will produce a 4 GeV CW beam with average currents of up to 200 micro-amp. Because the accelerator is recirculating, multiple beams of different energies are present simultaneously in the linac beamlines. In these sections, it is required that the position of each different energy beam be measured separately. To achieve this, the electron beam itself must be modulated in time in such a way that each different energy beam in the linacs induces signals on the beam position monitors (BPMs) that can be separated using correlation techniques.\nIn this paper, two types of correlation receiving systems used at CEBAF for the linac BPMs are described in detail. These receivers are based on the pulsed and bi-phase pseudorandom modulated carrier methods for modulating the electron beam. In addition, the BPM receivers for the CEBAF arc regions, where t

Physical Description

page(s) 28-33

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  • Talk compiled for Workshop On Particle Beam Instrumentation, 1-4 Oct 1990, Batavia, Illinois

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  • Report No.: CEBAF-PR-90-23
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 954162
  • Archival Resource Key: ark:/67531/metadc932399

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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.

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  • October 1, 1990

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 5, 2016, 2:55 p.m.

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Heefner, Jay; Perry, John & Barry, Walter. Electronic Systems for Beam Position Monitors at CEBAF, article, October 1, 1990; [Newport News, Virginia]. (digital.library.unt.edu/ark:/67531/metadc932399/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.