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Title: DESIGN PARAMETERS OF THE HIGH GAIN HARMONIC GENERATION EXPERIMENT USING CORNELL UNDULATOR A AT THE ATF

Abstract

The authors present the design parameters of a high gain harmonic generation (HGHG) FEL experiment to be carried out at the accelerator test facility (ATF) at BNL, in collaboration with APS. This experiment is a proof-of-principle experiment for the DUV-FEL at BNL. In the HGHG experiment they plan to double the frequency of a CO{sub 2} seed laser by utilizing a 0.76 m long 9 period undulator (named the Mini Undulator), a 2 m long 60 period undulator (named the Cornell Undulator A), and a 0.3 m electromagnet chicane (the dispersive section). The first undulator will be used in conjunction with the CO{sub 2} seed laser to generate a ponderomotive force that will bunch the electron beam. The bunching will then be enhanced by the dispersion section. The second undulator, the Cornell Undulator A, tuned to the second harmonic of the seed laser will serve as the radiator. In the beginning of the radiator the bunched beam will produce coherent emission (characterized by a quadratic growth of the radiated power), then the radiation will be amplified exponentially. They plan to study the evolution of the various radiation growth mechanisms as well as the coherence of the doubled, exponentially amplified radiation.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
760976
Report Number(s):
BNL-65983; KC0204011
R&D Project: LS1; KC0204011; TRN: US0005238
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 27 Oct 1998
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; TEST FACILITIES; ACCELERATORS; ADVANCED PHOTON SOURCE; ELECTRON BEAMS; BNL; DESIGN; HARMONIC GENERATION; FREE ELECTRON LASERS; PONDEROMOTIVE FORCE; WIGGLER MAGNETS; BEAM BUNCHERS

Citation Formats

YU, L H. DESIGN PARAMETERS OF THE HIGH GAIN HARMONIC GENERATION EXPERIMENT USING CORNELL UNDULATOR A AT THE ATF. United States: N. p., 1998. Web. doi:10.2172/760976.
YU, L H. DESIGN PARAMETERS OF THE HIGH GAIN HARMONIC GENERATION EXPERIMENT USING CORNELL UNDULATOR A AT THE ATF. United States. https://doi.org/10.2172/760976
YU, L H. 1998. "DESIGN PARAMETERS OF THE HIGH GAIN HARMONIC GENERATION EXPERIMENT USING CORNELL UNDULATOR A AT THE ATF". United States. https://doi.org/10.2172/760976. https://www.osti.gov/servlets/purl/760976.
@article{osti_760976,
title = {DESIGN PARAMETERS OF THE HIGH GAIN HARMONIC GENERATION EXPERIMENT USING CORNELL UNDULATOR A AT THE ATF},
author = {YU, L H},
abstractNote = {The authors present the design parameters of a high gain harmonic generation (HGHG) FEL experiment to be carried out at the accelerator test facility (ATF) at BNL, in collaboration with APS. This experiment is a proof-of-principle experiment for the DUV-FEL at BNL. In the HGHG experiment they plan to double the frequency of a CO{sub 2} seed laser by utilizing a 0.76 m long 9 period undulator (named the Mini Undulator), a 2 m long 60 period undulator (named the Cornell Undulator A), and a 0.3 m electromagnet chicane (the dispersive section). The first undulator will be used in conjunction with the CO{sub 2} seed laser to generate a ponderomotive force that will bunch the electron beam. The bunching will then be enhanced by the dispersion section. The second undulator, the Cornell Undulator A, tuned to the second harmonic of the seed laser will serve as the radiator. In the beginning of the radiator the bunched beam will produce coherent emission (characterized by a quadratic growth of the radiated power), then the radiation will be amplified exponentially. They plan to study the evolution of the various radiation growth mechanisms as well as the coherence of the doubled, exponentially amplified radiation.},
doi = {10.2172/760976},
url = {https://www.osti.gov/biblio/760976}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}