Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Stephen E. Bodner"'
Publikováno v:
High Power Laser Science and Engineering, Vol 1, Pp 2-10 (2013)
We will review some of the requirements for a laser that would be used with a laser fusion energy power plant, including frequency, spatial beam smoothing, bandwidth, temporal pulse shaping, efficiency, repetition rate, and reliability. The lowest ri
Externí odkaz:
https://doaj.org/article/d8a35f6ad6b4495d84f1a1f2beb95a4f
Autor:
Stephen E. Bodner
Publikováno v:
High Power Laser Science and Engineering. 7
Direct-drive laser fusion has one potential advantage over all other approaches to fusion energy. The hot plasma can be kept near or below the various plasma instability thresholds, if one uses purely spherical targets, with a short wavelength, large
Autor:
Robert Lehmberg, Andrew J. Schmitt, Denis Colombant, S. P. Obenschain, John H. Gardner, Stephen E. Bodner
Publikováno v:
Fusion Engineering and Design. 60:93-98
We have developed a new direct-drive target design that has a predicted energy gain of 127 using a 1.3 MJ KrF laser, and a gain of 155 using 3.1 MJ. The DT fuel is surrounded by an ablator consisting of a low density CH foam filled with frozen DT. Th
Publikováno v:
Physics of Plasmas. 7:2298-2301
A new laser fusion target concept is presented with a predicted energy gain of 127 using a 1.3 MJ KrF laser. This energy gain is sufficiently high for an economically attractive fusion reactor. X rays from high- and low-Z materials are used in combin
Autor:
J.L. Weaver, A. V. Deniz, M. Klapisch, Denis Colombant, C. J. Pawley, John H. Gardner, Andrew J. Schmitt, Stephen E. Bodner, Yefim Aglitskiy, Victor Serlin, S. P. Obenschain
Publikováno v:
Physics of Plasmas. 7:2046-2054
The role played by radiation in the radiation-preheated direct-drive laser fusion target design is discussed. The soft x-rays emitted during the foot of the laser pulse—at a few 1012 W/cm2—preheat the low-opacity foam ablator which helps to contr
Autor:
Y. Chan, Stephen E. Bodner, John H. Gardner, M. Klapisch, Denis Colombant, Jill P. Dahlburg, A. V. Deniz, John D. Sethian, Victor Serlin, T. Lehecka, C. J. Pawley, S. P. Obenschain, Y. Aglitskiy
Publikováno v:
Physics of Plasmas. 6:2089-2094
The Nike laser (∼2–3 kJ, ∼1014 W/cm2) has been used to ablatively accelerate planar liquid deuterium targets. These experiments are designed to test some aspects of a high gain direct drive target design. The target consists of a low-density fo
Autor:
Jill P. Dahlburg, T. Lehecka, M. Klapisch, Andrew J. Schmitt, John H. Gardner, S. P. Obenschain, Denis Colombant, Stephen E. Bodner, Avraham Bar-Shalom, Lee Phillips
Publikováno v:
Laser and Particle Beams. 17:225-235
We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint.
Autor:
John D. Sethian, John H. Gardner, C. J. Pawley, T. Lehecka, Stephen E. Bodner, Jill P. Dahlburg, Y. Chan, S. P. Obenschain, Andrew J. Schmitt, C. A. Sullivan, Y. Aglitskiy
Publikováno v:
Physics of Plasmas. 6:565-570
The uniform and smooth focal profile of the Nike KrF laser [S. Obenschain et al., Phys. Plasmas 3, 2098 (1996)] was used to ablatively accelerate 40 μm thick polystyrene planar targets with pulse shaping to minimize shock heating of the compressed m
Autor:
John F. Seely, Denis Colombant, J. A. Stamper, Victor Serlin, A. N. Mostovych, Yefim Aglitskiy, S. P. Obenschain, J Brown, M. Klapisch, A. V. Deniz, E. A. McLean, Y. Chan, C. J. Pawley, T. Lehecka, Robert Lehmberg, Stephen E. Bodner, Andrew J. Schmitt, John D. Sethian, Jill P. Dahlburg, John H. Gardner, K.A. Gerber
Publikováno v:
Fusion Engineering and Design. 44:171-174
Nike is a multi-kilojoule KrF laser with very high beam uniformity (ΔI/I< 0.2% with all 36 overlapped beams), and the capability to accelerate relatively thick targets on a low adiabat under conditions scalable to direct drive ICF. In a first set of
Publikováno v:
Journal of Plasma and Fusion Research. 75:112-120
A brief review is given of the requirements of inertial fusion energy drivers and their status and prospects in the U.S. Drivers based on lasers (diode-pumped solid-state and KrF) and heavy ions are discussed.