Design Considerations for Simultaneous FEL and Nuclear Physics Operation at CEBAF

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As conceived in a recent design study, electron beams of quite distinct character would be provided for nuclear physics experiments and FEL wigglers at CEBAF. When full nuclear physics operation begins, coordination between these two programs becomes critical. FEL operation requires electron bunches carrying charge of 120 pC at repetition rates of 2.5 and 7.5 MHz, whereas the nuclear physics users need a relatively small charge per bunch, ~ 0.13 pC, but at a repetition rate of 1.5 GHz. To allow maximal operation of the FEL facility without interfering with CEBAF's primary mission of conducting nuclear physics research, the principal ... continued below

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page(s) 216

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Yunn, Byung; Douglas, David; Neuffer, David; Krafft, Geoffrey; Bisognano, Joseph & Simrock, Stefan August 1, 1991.

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As conceived in a recent design study, electron beams of quite distinct character would be provided for nuclear physics experiments and FEL wigglers at CEBAF. When full nuclear physics operation begins, coordination between these two programs becomes critical. FEL operation requires electron bunches carrying charge of 120 pC at repetition rates of 2.5 and 7.5 MHz, whereas the nuclear physics users need a relatively small charge per bunch, ~ 0.13 pC, but at a repetition rate of 1.5 GHz. To allow maximal operation of the FEL facility without interfering with CEBAF's primary mission of conducting nuclear physics research, the principal mode of operation should accelerate and deliver the two disparate beams simultaneously with negligible degradation of beam quality. Various RF power, RF control, wakefield, and beam transport questions that are encountered in designing for concurrent operation are discussed.

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page(s) 216

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  • Journal Name: Nuclear Instruments & Methods in Physics Research, Section A; Journal Volume: 318

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  • Report No.: CEBAF-PR-91-33
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 954224
  • Archival Resource Key: ark:/67531/metadc925603

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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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  • August 1, 1991

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 5, 2016, 1:56 p.m.

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Yunn, Byung; Douglas, David; Neuffer, David; Krafft, Geoffrey; Bisognano, Joseph & Simrock, Stefan. Design Considerations for Simultaneous FEL and Nuclear Physics Operation at CEBAF, article, August 1, 1991; [Newport News, Virginia]. (digital.library.unt.edu/ark:/67531/metadc925603/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.