Technical Approaches for High Average Power FELs

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High power Free Electron Laser (FEL) oscillators have only recently achieved their original promise as producers of high power short wavelength tunable radiation. Room temperature accelerator systems limited duty factor and the ability to carry high brightness beam, and also increased the cost of RF power drivers in covering cavity wall losses. The application of SRF technology has now permitted more than two orders of magnitude increase in FEL average power just due to increased duty factor. A concurrent key technical development that leveraged the high efficiency of SRF linacs was the demonstration of beam energy recovery while lasing. This ... continued below

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609 Kilobytes pages

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Neil, G.R. January 1, 2001.

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High power Free Electron Laser (FEL) oscillators have only recently achieved their original promise as producers of high power short wavelength tunable radiation. Room temperature accelerator systems limited duty factor and the ability to carry high brightness beam, and also increased the cost of RF power drivers in covering cavity wall losses. The application of SRF technology has now permitted more than two orders of magnitude increase in FEL average power just due to increased duty factor. A concurrent key technical development that leveraged the high efficiency of SRF linacs was the demonstration of beam energy recovery while lasing. This leads to high overall efficiency and scales favorably to even higher average power systems. This paper will discuss the issues relating to high average power FELs utilizing the results of the IR Demo FEL at Jefferson Lab to illustrate the sizeable advantages that SRF offers for multi-kilowatt average power output.

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609 Kilobytes pages

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  • Journal Name: World Press; Other Information: Submitted to World Press

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  • Report No.: JLAB-ACT-01-02
  • Report No.: DOE/ER/40150-1814
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 775303
  • Archival Resource Key: ark:/67531/metadc725133

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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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  • January 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:38 p.m.

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Neil, G.R. Technical Approaches for High Average Power FELs, article, January 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc725133/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.