Method for energy dither of a particle beam
Abstract
A method for applying an energy dither to a charged particle beam in order to vary the wavelength of the charged particle beam. Bunches of charged particle beams are accelerated by cavities that are operated at a harmonic of the bunch repetition rate. One or more secondary radiofrequency accelerator cavities are added near the wiggler after the primary beam transport to apply a fluctuation between individual bunches with a pseudo-random distribution. The secondary radiofrequency accelerator cavities provide fine variations of the beam energy about a nominal operating point. Operating a free electron laser (FEL) with a 1% change in the electron beam energy via the secondary cavity will result in a 2% wavelength variation of the FEL output.
- Inventors:
- Issue Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568662
- Patent Number(s):
- 10367326
- Application Number:
- 14/719,380
- 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: 05/22/2015
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING
Citation Formats
Powers, Thomas Joseph, Douglas, David R., Evtushenko, Pavel, Benson, Stephen V., and Neil, George. Method for energy dither of a particle beam. United States: N. p., 2019.
Web.
Powers, Thomas Joseph, Douglas, David R., Evtushenko, Pavel, Benson, Stephen V., & Neil, George. Method for energy dither of a particle beam. United States.
Powers, Thomas Joseph, Douglas, David R., Evtushenko, Pavel, Benson, Stephen V., and Neil, George. Tue .
"Method for energy dither of a particle beam". United States. https://www.osti.gov/servlets/purl/1568662.
@article{osti_1568662,
title = {Method for energy dither of a particle beam},
author = {Powers, Thomas Joseph and Douglas, David R. and Evtushenko, Pavel and Benson, Stephen V. and Neil, George},
abstractNote = {A method for applying an energy dither to a charged particle beam in order to vary the wavelength of the charged particle beam. Bunches of charged particle beams are accelerated by cavities that are operated at a harmonic of the bunch repetition rate. One or more secondary radiofrequency accelerator cavities are added near the wiggler after the primary beam transport to apply a fluctuation between individual bunches with a pseudo-random distribution. The secondary radiofrequency accelerator cavities provide fine variations of the beam energy about a nominal operating point. Operating a free electron laser (FEL) with a 1% change in the electron beam energy via the secondary cavity will result in a 2% wavelength variation of the FEL output.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 30 00:00:00 EDT 2019},
month = {Tue Jul 30 00:00:00 EDT 2019}
}
Works referenced in this record:
Free-electron laser
patent, February 1989
- Neil, George R.; Edighoffer, John A.
- US Patent Document 4,809,281