Design of an electron beam spectral modification system

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We report the design of a spectral modification system (SMS) for use with the proposed NEAL linac-pulse stretcher ring, cw electron beam facility. The SMS allows tailoring of the energy distribution of electrons in beams produced by a pulsed linac operating in the transient beam loading (TBL) regime. Modification of the energy distribution of electrons injected into the pulse strecher ring will increase the duty factor of current extracted from the ring and improve the efficiency of the extraction process. Physically, the SMS consists of an anisochronous, achromatic magnetic lattice followed by a pair of traveling-wave accelerating sections. For beams ... continued below

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Pages: 4

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Sheppard, J.C.; York, R.C.; Norum, B.E. & McCarthy, J.S. October 1, 1981.

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Description

We report the design of a spectral modification system (SMS) for use with the proposed NEAL linac-pulse stretcher ring, cw electron beam facility. The SMS allows tailoring of the energy distribution of electrons in beams produced by a pulsed linac operating in the transient beam loading (TBL) regime. Modification of the energy distribution of electrons injected into the pulse strecher ring will increase the duty factor of current extracted from the ring and improve the efficiency of the extraction process. Physically, the SMS consists of an anisochronous, achromatic magnetic lattice followed by a pair of traveling-wave accelerating sections. For beams in the energy range of 500 MeV to 4 GeV, TBL ripple on the energy envelope of microsecond long beam spills is expected to be reduced from 1% peak-peak to less than 0.01% while the desired width of the energy profile due to the phase extent of the microbunches in the beam spill is preserved.

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Pages: 4

Notes

NTIS, PC A02/MF A01.

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  • 1981 linear accelerator conference, Santa Fe, NM, USA, 19 Oct 1981

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  • Other: DE82005081
  • Report No.: SLAC-PUB-2816
  • Report No.: CONF-811083-13
  • Grant Number: AC03-76SF00515
  • Grant Number: AS05-80ER10633
  • Office of Scientific & Technical Information Report Number: 5506693
  • Archival Resource Key: ark:/67531/metadc1092271

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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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  • October 1, 1981

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  • Feb. 10, 2018, 10:06 p.m.

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  • Feb. 21, 2018, 8:05 p.m.

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Sheppard, J.C.; York, R.C.; Norum, B.E. & McCarthy, J.S. Design of an electron beam spectral modification system, article, October 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1092271/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.