Time-integrated Light Images of OMEGA Implosions PDF Download
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Author: Patrick J. Morley
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Author: Patrick J. Morley
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 61
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Book Description
This volume of the LLE Review, covering October-December 2001, features "Time-Integrated Light Images of OMEGA Implosions" by P. Morley and W. Seka (p. 1). E. Kowaluk initiated this project for aesthetic rather than scientific reasons when he began taking visible light photographs of imploding OMEGA targets. These beautiful images are used to communicate LLE's mission to the general public. A closer examination of the images revealed a one-to-one correspondence between the bright spots in the image and each of the 60 laser beams. The intensity of the bright spots has been related to refraction and absorption in the plasma surrounding the imploding target. These photographs are now proving to be the basis of a new laser-plasma interaction diagnostic.
Author: Peter E. Stott
Publisher: Springer Science & Business Media
ISBN: 1441986960
Category : Science
Languages : en
Pages : 449
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Proceedings of the International Conference on Advanced Diagnostics for Magnetic and Inertial Fusion, held September 3-7, 2001 at Villa Monastero, Varenna, Italy. This volume focuses on future diagnostic requirements for fusion energy research emphasizing advanced diagnostics, new techniques and areas where further progress is required.
![Measuring Shock-bang Timing and [rho]R Evolutions of D3He Implosions on OMEGA PDF](https://books.google.com/books/content/images/frontcover/58HNNwAACAAJ?fife=w80-h100)
Author: Johan A. Frenje
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
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New experimental results describing the dynamics of D3He capsule implosions, performed at the 60 beam direct-drive OMEGA laser system [T.R. Boehly et al., Opt. Commun. 133, 495 (1997)], are presented. The capsules, nominally 940 [mu]m in diameter and with 20 to 27 mm thick CH shells, were filled with 18 atm D3He gas and irradiated with 23 kJ of UV light. Simultaneous measurements of D3He burn history, DD burn history, and several time-integrated D3He proton energy spectra provided new results, such as shock-bang timing, shock-burn duration, evolution of the ion temperature, and evolution of rR and rR asymmetries. The shock-bang time measurements, when compared to calculation using the 1-D LILAC code [J. Delettrez et al., Phys. Rev. A 36, 3926 (1987)], indicate that a varying flux limiter is required to explain the data, while the measured shock-burn duration is significantly shorter than 1-D calculations, irrespective of flux limiter. The time evolution of ion temperature [Ti(t)] has been inferred from the ratio of the DD and the D3He burn histories, and a constant temperature is observed during the compression phase. The discrepancy between experimental data and 1-D simulations during the final stages of the compression burn indicates that mix is significant, especially for the 20 and 24-[mu]m capsule implosions. Evolution of rR and rR asymmetries show that the average [rho]R grows by a factor of [approx.] 4-5 from shock-bang to compression-bang time, and that rR asymmetries (l = 1), primarily driven by capsule convergence, grows 2 times faster than the average [rho]R growth.
Author:
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ISBN:
Category : Controlled fusion
Languages : en
Pages : 152
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 1176
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Author: National Research Council
Publisher: National Academies Press
ISBN: 030908637X
Category : Science
Languages : en
Pages : 177
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Book Description
Recent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as supernovae and black holes. These advances will also benefit inertial confinement fusion research and the nation's nuclear weapon's program. The report describes the major research facilities on which such high energy density conditions can be achieved and lists a number of key scientific questions about high energy density physics that can be addressed by this research. Several recommendations are presented that would facilitate the development of a comprehensive strategy for realizing these research opportunities.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1484
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309057787
Category : Science
Languages : en
Pages : 63
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher:
ISBN:
Category : Energy development
Languages : en
Pages : 1444
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