KrF amplifier design issues and application to ICF system design

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5837376

Sullivan, J A; Allen, G R; Berggren, R R; Czuchlewski, S J; Harris, D B; Jones, M E; Krohn, B J; Kurnit, N A; Leland, W T; Mansfield, C; McLeod, J; McCown, A W; McLeod, J; Pendergrass, J H; Rose, E A; Rosocha, L A; Thomas, V A

Los Alamos National Laboratory has assembled an array of experimental and theoretical tools to optimize amplifier design for future KrF lasers. The next opportunity to exercise these tools is with the design of the second generation NIKE system under construction at the Naval Research Laboratory with the collaboration of Los Alamos National Laboratory. Major issues include laser physics (energy extraction in large modules with amplified spontaneous emission) and diode performance and efficiency. High efficiency and low cost are increasingly important for larger future KrF amplifiers. In this paper we present our approach to amplifier scaling and discuss the more important design considerations for large KrF amplifiers. We point out where improvements in the fundamental data base for KrF amplifiers could lead to increased confidence in performance predictions for large amplifiers, and we address the currently unresolved issues of anomalous absorption near line center and the possibility of diode instabilities for low impedance designs. Los Alamos has designed a 100-kJ KrF laser-fusion system for both direct- and indirect-drive target physics experiments using 60-kJ amplifier modules. The design of this system will be reviewed. 38 refs., 110 figs., 3 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5837376
• Report Number(s): LA-UR-91-1210; CONF-9104210--5; ON: DE91013314
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
COST
DESIGN
EXCIMER LASERS
GAS LASERS
ICF DEVICES
KRYPTON FLUORIDE LASERS
LASER FUSION REACTORS
LASERS
OPTICS
PERFORMANCE
PULSE TECHNIQUES
PUMPING
SCALING LAWS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS