FEL system with homogeneous average output
Abstract
A method of varying the output of a free electron laser (FEL) on very short time scales to produce a slightly broader, but smooth, time-averaged wavelength spectrum. The method includes injecting into an accelerator a sequence of bunch trains at phase offsets from crest. Accelerating the particles to full energy to result in distinct and independently controlled, by the choice of phase offset, phase-energy correlations or chirps on each bunch train. The earlier trains will be more strongly chirped, the later trains less chirped. For an energy recovered linac (ERL), the beam may be recirculated using a transport system with linear and nonlinear momentum compactions M.sub.56, which are selected to compress all three bunch trains at the FEL with higher order terms managed.
- Inventors:
- Issue Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1417315
- Patent Number(s):
- 9871337
- Application Number:
- 14/708,259
- 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
- DOE Contract Number:
- AC05-06OR23177
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2015 May 10
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Douglas, David R., Legg, Robert, Whitney, R. Roy, Neil, George, and Powers, Thomas Joseph. FEL system with homogeneous average output. United States: N. p., 2018.
Web.
Douglas, David R., Legg, Robert, Whitney, R. Roy, Neil, George, & Powers, Thomas Joseph. FEL system with homogeneous average output. United States.
Douglas, David R., Legg, Robert, Whitney, R. Roy, Neil, George, and Powers, Thomas Joseph. Tue .
"FEL system with homogeneous average output". United States. https://www.osti.gov/servlets/purl/1417315.
@article{osti_1417315,
title = {FEL system with homogeneous average output},
author = {Douglas, David R. and Legg, Robert and Whitney, R. Roy and Neil, George and Powers, Thomas Joseph},
abstractNote = {A method of varying the output of a free electron laser (FEL) on very short time scales to produce a slightly broader, but smooth, time-averaged wavelength spectrum. The method includes injecting into an accelerator a sequence of bunch trains at phase offsets from crest. Accelerating the particles to full energy to result in distinct and independently controlled, by the choice of phase offset, phase-energy correlations or chirps on each bunch train. The earlier trains will be more strongly chirped, the later trains less chirped. For an energy recovered linac (ERL), the beam may be recirculated using a transport system with linear and nonlinear momentum compactions M.sub.56, which are selected to compress all three bunch trains at the FEL with higher order terms managed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 16 00:00:00 EST 2018},
month = {Tue Jan 16 00:00:00 EST 2018}
}
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