Compact, Efficient Laser Systems Required for Laser Inertial Fusion Energy

Bayramian, A.; Aceves, S.; Anklam, T.M.; Baker, K. L.; Bliss, Erlan S.; Boley, C. D.; Bullington, A.; Caird, J. A.; Chen, D.; Deri, Robert J.; Dunne, Mike; Erlandson, Alvin C.; Flowers, Daniel L.; Henesian, Mark A.; Latkowski, Jeffery F.; Manes, Kenneth R.; Molander, William A.; Moses, E; Piggott, T.; Powers, S.; Rana, S.; Rodríguez, Sebastián; Sawicki, Richard H.; Schaffers, Kathleen I.; Seppala, Lynn G.; Spaeth, M. L.; Sutton, Steven B.; Telford, S.

doi:10.13182/fst10-313

Cited by 73 publications

(46 citation statements)

References 27 publications

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“…A LIFE power plant system (Figure 3b) comprise a 16-Hz, diode-pumped solid-state laser (DPSSL) with a "wall-plug" efficiency of approximately 16% [15], a target factory, a target chamber surrounded by a lithium blanket to convert the fusion power to thermal power and also breed the T needed, and the balance of the plant (heat exchange and thermal to electric conversion systems) [16]. The system is designed for ICF gains of about 60 and fusion yields of about 135 MJ to provide 2100 MW of fusion power.…”

Section: Epj Web Of Conferencesmentioning

confidence: 99%

“…The LIFE laser system would consist of a large number of independent beamlines, each using a multi-pass architecture to optimize performance [15]. However, the LIFE laser design differs in several respects from the NIF design.…”

Section: Epj Web Of Conferencesmentioning

confidence: 99%

“…An increase in repetition rate by nearly five orders of magnitude results in average output power of order 100 kW per beamline. Many of the other technologies required for high-average-power DPSSLs, such as the thermal management of the optics, use of adaptive optics to correct thermal wavefront distortions, and methods for harmonically converting high-average-power lasers, have been demonstrated with LLNL's Mercury laser [15].…”

Section: Epj Web Of Conferencesmentioning

confidence: 99%

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The NIF: An international high energy density science and inertial fusion user facility

Moses

Storm

2013

EPJ Web of Conferences

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Abstract. The National Ignition Facility (NIF), a 1.8-MJ/500-TW Nd:Glass laser facility designed to study inertial confinement fusion (ICF) and high-energy-density science (HEDS), is operational at Lawrence Livermore National Laboratory (LLNL). A primary goal of NIF is to create the conditions necessary to demonstrate laboratory-scale thermonuclear ignition and burn. NIF experiments in support of indirect-drive ignition began late in FY2009 as part of the National Ignition Campaign (NIC), an international effort to achieve fusion ignition in the laboratory. To date, all of the capabilities to conduct implosion experiments are in place with the goal of demonstrating ignition and developing a predictable fusion experimental platform in 2012. The results from experiments completed are encouraging for the near-term achievement of ignition. Capsule implosion experiments at energies up to 1.6 MJ have demonstrated laser energetics, radiation temperatures, and symmetry control that scale to ignition conditions. Of particular importance is the demonstration of peak hohlraum temperatures near 300 eV with overall backscatter less than 15%. Important national security and basic science experiments have also been conducted on NIF. Successful demonstration of ignition and net energy gain on NIF will be a major step towards demonstrating the feasibility of laser-driven Inertial Fusion Energy (IFE). This paper will describe the results achieved so far on the path toward ignition, the beginning of fundamental science experiments and the plans to transition NIF to an international user facility providing access to HEDS and fusion energy researchers around the world.

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Section: Epj Web Of Conferencesmentioning

confidence: 99%

Section: Epj Web Of Conferencesmentioning

confidence: 99%

Section: Epj Web Of Conferencesmentioning

confidence: 99%

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The NIF: An international high energy density science and inertial fusion user facility

Moses

Storm

2013

EPJ Web of Conferences

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“…A folded beam path is used, and the beam size is increased at each pass. Higher pulse energies (>1 J) at lower repetition rates (10 Hz, 100 Hz) have been achieved by using conventional designs [12], thick disks [13][14][15][16], total reflection active mirrors (TRAM) [17] or multi-slabs [18,19]. Some of them employ operation at cryogenic temperatures using the advantages of higher thermal conductivity and higher gain at low temperatures [20,21].…”

Section: Introductionmentioning

confidence: 99%

Status of the High Average Power Diode-Pumped Solid State Laser Development at HiLASE

et al. 2015

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An overview of the latest developments of kilowatt-level diode pumped solid state lasers for advanced applications at the HiLASE Centre is presented. An overview of subcontracted and in-house-developed laser beamlines is presented. The aim of development is to build kW-class beamlines delivering picosecond pulses between 1-and 100-kHz repetition rates and high-energy nanosecond pulses at 10 Hz. The picosecond beamlines are based on Yb:YAG thin-disk amplifiers and chirped pulse amplification. The current status of the beamlines' performance is reported. The advantages of zero-phonon line and pulsed OPEN ACCESS Appl. Sci. 2015, 5638 pumping are demonstrated with respect to efficiency, thin disk temperature and beam quality. New diagnostics methods supporting the high average power lasers' development, such as the high-resolution spectroscopy of Yb-doped materials, in situ thin disk deformation measurements, single-shot M 2 measurement, realization of wavefront correction by a deformable mirror and the laser performance of a new mixed garnet ceramics, are described. The energetic, thermal and fluid-mechanical numerical modeling for the optimization of the multi-slab amplifiers is also described.

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“…The current point design for the LIFE laser [1] leverages decades of solid-state laser development in order to achieve the performance and attributes required for inertial fusion energy. This document provides a brief comparison of the LIFE laser point design to other state-of-the-art solid-state lasers.…”

mentioning

confidence: 99%