Investigations, Experiments, and Implications for using existing Pulse Magents for 'TOPOFF' Operation at the Advanced Light Source

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ALS top-off mode of operation will require injection of the electron beam from the Booster Ring into the Storage Ring at the full ALS energy level of 1.9 GeV. Currently the Booster delivers a beam at 1.5 GeV to the Storage Ring where it is then ramped to the full energy and stored for the user operation. The higher Booster beam energy will require the pulse magnets in the Booster and Storage Rings to operate at proportionally higher magnetic gap fields. Our group studied and tested the possible design and installation modifications required to operate the magnets and drivers at ... continued below

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Stover, Gregory D.; Baptiste, Kenneth Michael; Barry, Walter; Gath, William; Julian, James; Kwiatkowski, Slawomir et al. May 11, 2005.

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ALS top-off mode of operation will require injection of the electron beam from the Booster Ring into the Storage Ring at the full ALS energy level of 1.9 GeV. Currently the Booster delivers a beam at 1.5 GeV to the Storage Ring where it is then ramped to the full energy and stored for the user operation. The higher Booster beam energy will require the pulse magnets in the Booster and Storage Rings to operate at proportionally higher magnetic gap fields. Our group studied and tested the possible design and installation modifications required to operate the magnets and drivers at ''top-off'' levels. Our results and experiments show that with minor electrical modifications all the existing pulse magnet systems can be used at the higher energy levels, and the increased operational stresses should have a negligible impact on magnet reliability. Furthermore, simple electrical modifications to the storage ring thick septum will greatly reduce the present level of septum stray leakage fields into the storage ring beam.

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  • 2005 Particle Accelerator Conference, Knoxville,Tennessee, May 16-20, 2005

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  • Report No.: LBNL--57576
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 877629
  • Archival Resource Key: ark:/67531/metadc874724

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  • May 11, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 1, 2017, 10:04 p.m.

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Stover, Gregory D.; Baptiste, Kenneth Michael; Barry, Walter; Gath, William; Julian, James; Kwiatkowski, Slawomir et al. Investigations, Experiments, and Implications for using existing Pulse Magents for 'TOPOFF' Operation at the Advanced Light Source, article, May 11, 2005; (digital.library.unt.edu/ark:/67531/metadc874724/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.