KrF Laser Development for Fusion Energy

Development of electron beam pumped KrF Lasers for fusion energy

J. D. Sethian, M. Friedman, J. Giuliani, R.H. Lehmberg, M. Myers, S.P. Obenschain, P. Kepple, Plasma Physics Division, Naval Research Laboratory, Washington, DC M. Wolford, Science Applications International, Corporation, McLean, VA F. Hegeler, Commonwealth Technology, Inc, Alexandria, VA S. Swanekamp, JAYCOR, Alexandria, VA D. Weidenheimer, Titan-Pulse Sciences Division, San Leandro, CA D. Wel...

Advantages of KrF Lasers for Inertial Confinement Fusion Energy

Advanced concepts for direct drive inertial confinement fusion (ICF) have emerged that may lead to sufficient gain for the energy application (g>140) at laser driver energies as low as 1 megajoule. For example, recent “shock ignition” designs compress low aspect ratio pellets then apply a final high intensity spike pulse (10 16 W/cm 2 ) to ignite the fuel via a converging shock wave. These anal...

Fast - Discharge - Initiated KrF Laser

Intense laser emission has been observed from the KrF molecule formed by a chemical reaction initiated by fast-discharge circuitry. With a gas mixture of He:Kr:NF, = 500:50:1 and a sample pressure of 700 Torr, an output energy of 0. 8 mj was measured from a 25-nsec laser pulse (FWHM). Spectral analysis of the laser emission indicated laser action at 248.5 and 249.5 nm.

UWFDM-1310 Nuclear Assessment of Final Optics of a KrF Laser Driven Fusion Power Plant

ADVANCED PULSED POWER CONCEPT AND COMPONENT DEVELOPMENT FOR KrF LASER IFE*

The Electra advanced pulsed power development program has the goal of developing and demonstrating pulsed power technology that is applicable for KrF (krypton fluoride) Laser IFE (inertial fusion energy). The application presents efficiency, lifetime and cost challenges that mandate the use of advanced pulse compression topologies. In turn, these advanced topologies require the development of c...