Design Principles for a Compact High Average Power IR FEL

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Progress in superconducting rf (srf) technology has led to dramatic changes in cryogenic losses, cavity gradients, and microphonic levels. Design principles for a compact high average power Energy Recovery FEL at IR wavelengths, consistent with the state of the art in srf, are outlined, High accelerating gradients, of order 20 MV/m at Q{sub 0}{approx}1x10{sup 10} possible at rf frequencies of 1300 MHz and 1500 MHz, allow for a single-cryomodule linac, with minimum cryogenic losses. Filling every rf bucket, at these high frequencies, results in high average current at relatively low charge per bunch, thereby greatly ameliorating all single bunch phenomena, ... continued below

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121 Kilobytes pages

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Merminga, Lia & Benson, Steve August 1, 2001.

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Description

Progress in superconducting rf (srf) technology has led to dramatic changes in cryogenic losses, cavity gradients, and microphonic levels. Design principles for a compact high average power Energy Recovery FEL at IR wavelengths, consistent with the state of the art in srf, are outlined, High accelerating gradients, of order 20 MV/m at Q{sub 0}{approx}1x10{sup 10} possible at rf frequencies of 1300 MHz and 1500 MHz, allow for a single-cryomodule linac, with minimum cryogenic losses. Filling every rf bucket, at these high frequencies, results in high average current at relatively low charge per bunch, thereby greatly ameliorating all single bunch phenomena, such as wakefields and coherent synchrotron radiation. These principles are applied to derive self-consistent sets of parameters for 100 kW and 1 MW average power IR FELs and are compared with low frequency solutions. This work supported by U.S. DOE Contract No. DE-AC05-84ER40150, the Commonwealth of Virginia and the Laser Processing Consortium.

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121 Kilobytes pages

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  • FEL 2001, Darmstadt (DE), 08/20/2001--08/24/2001

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  • Report No.: JLAB-ACP-01-06
  • Report No.: DOE/ER/40150-1953
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 788821
  • Archival Resource Key: ark:/67531/metadc722655

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  • August 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 7:59 p.m.

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Merminga, Lia & Benson, Steve. Design Principles for a Compact High Average Power IR FEL, article, August 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc722655/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.