The S-Band 1.6 Cell RF Gun Correlated Energy Spread Dependence on pi and 0 Mode Relative Amplitude

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The {pi} mode or accelerating mode in a 1.6 cell rf gun is normally the only mode considered in rf gun simulations. However, due to the finite Q there is a small but measurable 0 mode present even at steady state. The {pi} mode by definition has a 180{sup o} phase shift between cells but this phase shift for the total field is several degrees different. This results in a correlated energy spread exiting the gun. A comparison of simulation and experiment will be shown.

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9 pages

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Schmerge, J.F.; Castro, J.; Clendenin, J.E.; Dowell, D.H.; Gierman, S.M.; Loos, H. et al. February 24, 2006.

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The {pi} mode or accelerating mode in a 1.6 cell rf gun is normally the only mode considered in rf gun simulations. However, due to the finite Q there is a small but measurable 0 mode present even at steady state. The {pi} mode by definition has a 180{sup o} phase shift between cells but this phase shift for the total field is several degrees different. This results in a correlated energy spread exiting the gun. A comparison of simulation and experiment will be shown.

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9 pages

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  • Contributed to Workshop on the Physics and Applications of High Brightness Electron Beams (PAHBEB 2005), Erice, Sicily, Italy, 9-14 Oct 2005

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  • Report No.: SLAC-PUB-11702
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 876591
  • Archival Resource Key: ark:/67531/metadc875584

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Office of Scientific & Technical Information Technical Reports

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  • February 24, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 1, 2016, 6:20 p.m.

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Schmerge, J.F.; Castro, J.; Clendenin, J.E.; Dowell, D.H.; Gierman, S.M.; Loos, H. et al. The S-Band 1.6 Cell RF Gun Correlated Energy Spread Dependence on pi and 0 Mode Relative Amplitude, article, February 24, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc875584/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.