Studies of Room Temperature Accelerator Structures for the ILC Positron Source

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There are many challenges in the design of the normal-conducting portion of the ILC positron injector system such as achieving adequate cooling with the high RF and particle loss heating, and sustaining high accelerator gradients during millisecond-long pulses in a strong magnetic field. The proposed design for the positron injector contains both standing-wave and traveling-wave L-band accelerator structures for high RF efficiency, low cost and ease of fabrication. This paper presents results from several studies including particle energy deposition for both undulator based and conventional positron sources, cooling system design, accelerator structure optimization, RF pulse heating, cavity frequency stabilization, and ... continued below

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3 pages

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Wang, J.W.; Adolphsen, C.; Bharadwaj, V.; Bowden, G.B.; Dolgashev, V.A.; Jones, R.M. et al. March 15, 2006.

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Description

There are many challenges in the design of the normal-conducting portion of the ILC positron injector system such as achieving adequate cooling with the high RF and particle loss heating, and sustaining high accelerator gradients during millisecond-long pulses in a strong magnetic field. The proposed design for the positron injector contains both standing-wave and traveling-wave L-band accelerator structures for high RF efficiency, low cost and ease of fabrication. This paper presents results from several studies including particle energy deposition for both undulator based and conventional positron sources, cooling system design, accelerator structure optimization, RF pulse heating, cavity frequency stabilization, and RF feed system design.

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3 pages

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  • Prepared for Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005

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  • Report No.: SLAC-PUB-11767
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 877450
  • Archival Resource Key: ark:/67531/metadc877820

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  • March 15, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 12:56 p.m.

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Wang, J.W.; Adolphsen, C.; Bharadwaj, V.; Bowden, G.B.; Dolgashev, V.A.; Jones, R.M. et al. Studies of Room Temperature Accelerator Structures for the ILC Positron Source, article, March 15, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc877820/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.