Bunch length compression method for free electron lasers to avoid parasitic compressions

Douglas, David R.; Benson, Stephen; Nguyen, Dinh Cong; Tennant, Christopher; Wilson, Guy

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Title: Bunch length compression method for free electron lasers to avoid parasitic compressions

Abstract

A method of bunch length compression method for a free electron laser (FEL) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the RF waveform, 2) compressing using a positive momentum compaction (R.sub.56>0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line.

Inventors:: Douglas, David R.; Benson, Stephen; Nguyen, Dinh Cong; Tennant, Christopher; Wilson, Guy

Issue Date:: 2015-05-26

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1182572

Patent Number(s):: 9040936

Application Number:: 14/503,499

Assignee:: Jefferson Science Associates, LLC (Newport News, VA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H01S3/0903 - {Free-electron laser}

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DOE Contract Number:: AC05-06OR23177

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; 42 ENGINEERING

Citation Formats


                    Douglas, David R., Benson, Stephen, Nguyen, Dinh Cong, Tennant, Christopher, and Wilson, Guy. Bunch length compression method for free electron lasers to avoid parasitic compressions.  United States: N. p., 2015. 
        Web.

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                    Douglas, David R., Benson, Stephen, Nguyen, Dinh Cong, Tennant, Christopher, & Wilson, Guy. Bunch length compression method for free electron lasers to avoid parasitic compressions.  United States.

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                    Douglas, David R., Benson, Stephen, Nguyen, Dinh Cong, Tennant, Christopher, and Wilson, Guy. Tue .  
        "Bunch length compression method for free electron lasers to avoid parasitic compressions".  United States.  https://www.osti.gov/servlets/purl/1182572.

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@article{osti_1182572,

  title        = {Bunch length compression method for free electron lasers to avoid parasitic compressions},

  author       = {Douglas, David R. and Benson, Stephen and Nguyen, Dinh Cong and Tennant, Christopher and Wilson, Guy},

  abstractNote = {A method of bunch length compression method for a free electron laser (FEL) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the RF waveform, 2) compressing using a positive momentum compaction (R.sub.56>0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2015},

  month        = {5}

}

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Works referenced in this record:

Compaction managed mirror bend achromat
patent, October 2005

Douglas, David R.
US Patent Document 6,956,218
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6956218

Use of incomplete energy recovery for the energy compression of large energy spread charged particle beams
patent, January 2007

Douglas, David R.; Benson, Stephen V.
US Patent Document 7,166,973
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7166973

Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression
patent, July 2012

Douglas, David R.; Tennant, Christopher
US Patent Document 8,217,596
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8217596

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