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Title: Characterization and performance of a high-power all-solid-state drive laser for application in high-current photo-cathode injectors

Abstract

This paper describes the characterization and performance of a diode-pumped, high-power, picosecond laser system designed for high-current photo-cathode accelerator injectors at repetition rates of both 74.85 MHz and 748.5 MHz. A comprehensive set of measurements and analyses are presented for the amplifier gain, thermally induced beam size variation, pulse width, harmonic conversion efficiency, beam quality, power stability, beam pointing stability, and timing jitter. This laser demonstrates excellent overall system performance.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson Lab National Accelerator Facility
Sponsoring Org.:
USDOE
OSTI Identifier:
955555
Report Number(s):
JLAB-ACT-06-475
Journal ID: ISSN 1098-4402; TRN: US1004696
DOE Contract Number:
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Special Topics AB
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; AMPLIFIERS; EFFICIENCY; HARMONICS; LASERS; PERFORMANCE; STABILITY; BEAM INJECTION; BEAMS

Citation Formats

Zhang, Shukui, Hardy, David, Neil, George, Michelle D. Shinn, and Dergachev, Alex. Characterization and performance of a high-power all-solid-state drive laser for application in high-current photo-cathode injectors. United States: N. p., 2006. Web.
Zhang, Shukui, Hardy, David, Neil, George, Michelle D. Shinn, & Dergachev, Alex. Characterization and performance of a high-power all-solid-state drive laser for application in high-current photo-cathode injectors. United States.
Zhang, Shukui, Hardy, David, Neil, George, Michelle D. Shinn, and Dergachev, Alex. Wed . "Characterization and performance of a high-power all-solid-state drive laser for application in high-current photo-cathode injectors". United States. doi:. https://www.osti.gov/servlets/purl/955555.
@article{osti_955555,
title = {Characterization and performance of a high-power all-solid-state drive laser for application in high-current photo-cathode injectors},
author = {Zhang, Shukui and Hardy, David and Neil, George and Michelle D. Shinn and Dergachev, Alex},
abstractNote = {This paper describes the characterization and performance of a diode-pumped, high-power, picosecond laser system designed for high-current photo-cathode accelerator injectors at repetition rates of both 74.85 MHz and 748.5 MHz. A comprehensive set of measurements and analyses are presented for the amplifier gain, thermally induced beam size variation, pulse width, harmonic conversion efficiency, beam quality, power stability, beam pointing stability, and timing jitter. This laser demonstrates excellent overall system performance.},
doi = {},
journal = {Physical Review Special Topics AB},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}
  • We report the characterization and performance of a diode-pumped, high-power, picosecond laser system designed for high-current photo-cathode accelerator injector at repetition rates of both 75MHz and 750MHz. The characterization includes measurement of the amplification gain, thermally induced beam mode variation, harmonic conversion efficiency, system's amplitude stability, beam pointing stability, beam profile, and pulse width for both frequencies.
  • Current drive and current profile control constitute one of the major lines of investigations on the 1.7 MA supra-conducting Tokamak Tore Supra. Sixty seconds fully non-inductive pulses were obtained in 1994 by means of Lower Hybrid current drive. A successful fast wave current drive programme is also ongoing. It is shown that D{sub 0} beams of 500{endash}1000 keV, at a power level of 3{endash}5 MW, would complete these physics investigations on the route of fully non-inductive advanced Tokamak scenarios. The current drive efficiency, the fast ion losses and the shine-through are calculated by means of a Fokker Planck code andmore » a Monte-Carlo code. The angle of injection and beam energy otimization calculations are presented. The results of the 2 codes are compared. {copyright} {ital 1996 American Institute of Physics.}« less
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