Title :
Electra: repetitively pulsed 700 J, 100 NS electron beam pumped KRF laser
Author :
Hegeler, Frank ; Friedman, M. ; Sethian, John D. ; Myers, M.C. ; Wolford, Matthew F. ; Giuliani, J.L. ; Burns, P. ; Jaynes, R.
Author_Institution :
Commonwealth Technol. Inc., Alexandria, VA
Abstract :
Summary form only given. Electra is a repetitively pulsed, electron beam pumped krypton fluoride (KrF) laser at the Naval Research Laboratory that is developing the technologies that can meet the inertial fusion energy (IFE) requirements for durability, efficiency, and cost. The technologies developed on Electra should be directly scalable to a full size fusion power plant beam line. The laser system consists of a main amplifier with an aperture of 30times30 cm2 , a 10times10 cm2 pre-amplifier, and a commercial discharge laser serving as the seed oscillator. The main amplifier, currently operated as an oscillator, has demonstrated single shot and rep-rate laser energies exceeding 700 J, with a pulse width of 100 ns at 248 nm. Continuous operation of the KrF laser has lasted for more than 2.5 hours without failure at 1 Hz, and tests at higher repetition rates are ongoing
Keywords :
gas lasers; krypton compounds; laser beams; 100 ns; 248 nm; 700 J; Electra; KrF; discharge laser; electron beam pumped KrF laser; fusion power plant beam line; inertial fusion energy; krypton fluoride; repetitively pulsed laser; seed oscillator; Costs; Electron beams; Laboratories; Laser excitation; Laser fusion; Optical pulses; Oscillators; Power generation; Pulse amplifiers; Pump lasers;
Conference_Titel :
Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. The 33rd IEEE International Conference on
Conference_Location :
Traverse City, MI
Print_ISBN :
1-4244-0125-9
DOI :
10.1109/PLASMA.2006.1707018
