Transfer of a polarized proton beam from AGS to RHIC

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As part of the RHIC project, the RHIC machine will also be able to accelerate polarized proton beam bunches. The bunches will be extracted from the AGS machine, with kinetic energy T = 25 GeV, and transferred into RHIC via the AtR transfer line. When the RHIC machine accelerates polarized protons, it will operate with two full snakes, which define the stable spin direction of a polarized proton beam circulating in each ring, along the vertical. Therefore a polarized proton beam should be injected into the RHIC machine with the stable spin direction along the vertical in order to match ... continued below

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4 p.

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Tsoupas, N.; Roser, T.; Syphers, M.; Luccio, A. & Underwood, D. July 1, 1997.

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As part of the RHIC project, the RHIC machine will also be able to accelerate polarized proton beam bunches. The bunches will be extracted from the AGS machine, with kinetic energy T = 25 GeV, and transferred into RHIC via the AtR transfer line. When the RHIC machine accelerates polarized protons, it will operate with two full snakes, which define the stable spin direction of a polarized proton beam circulating in each ring, along the vertical. Therefore a polarized proton beam should be injected into the RHIC machine with the stable spin direction along the vertical in order to match that of the RHIC machine. The layout of the dipole magnets of the AtR line creates a dependence, on the injection energy, of the stable spin direction of a polarized proton beam injected into the RHIC machine. In this paper, the study of the stable spin direction (at the RHIC injection point) of a polarized proton beam as a function of the injection energy is presented. A modification of the AtR transfer line, which eliminates this energy dependence (within the range of proton injection energies) of the stable spin direction is also presented.

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4 p.

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INIS; OSTI as DE97006677

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  • 17. IEEE particle accelerator conference, Vancouver (Canada), 12-16 May 1997

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  • Other: DE97006677
  • Report No.: BNL--63931
  • Report No.: CONF-970503--101
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 495794
  • Archival Resource Key: ark:/67531/metadc679978

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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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  • July 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Nov. 10, 2015, 12:36 p.m.

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Tsoupas, N.; Roser, T.; Syphers, M.; Luccio, A. & Underwood, D. Transfer of a polarized proton beam from AGS to RHIC, article, July 1, 1997; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc679978/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.