2020
DOI: 10.1134/s1063776120090149
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Features of the Ignition of a Laser Fusion Target by a Converging Shock Wave

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Cited by 6 publications
(9 citation statements)
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“…Today the term " fast ignition" is commonly used to describe all scenarios involving two main stages: compression of fuel to high density without significant heating, and heating a large enough area of high-density fuel to ignition temperature T ig with any additional energy source, but without using a focused shock wave (it was originally introduced to describe one of scenarios of such type [22]). Focused shock wave heating [23][24][25][26] scenarios are now called " convergent shock wave ignition" or " focused shock wave ignition " [25,26] in Russian; the English literature uses the term " shock ignition" [24]. Fast ignition with strong additional compression of some fuel regions by heating other regions [27][28][29][30][31] has been considered.…”
Section: Concept Of Fast Ignition and Some Variants Of Fast Ignition ...mentioning
confidence: 99%
“…Today the term " fast ignition" is commonly used to describe all scenarios involving two main stages: compression of fuel to high density without significant heating, and heating a large enough area of high-density fuel to ignition temperature T ig with any additional energy source, but without using a focused shock wave (it was originally introduced to describe one of scenarios of such type [22]). Focused shock wave heating [23][24][25][26] scenarios are now called " convergent shock wave ignition" or " focused shock wave ignition " [25,26] in Russian; the English literature uses the term " shock ignition" [24]. Fast ignition with strong additional compression of some fuel regions by heating other regions [27][28][29][30][31] has been considered.…”
Section: Concept Of Fast Ignition and Some Variants Of Fast Ignition ...mentioning
confidence: 99%
“…in the case of the traditional approach, is intended for smooth low-entropy implosion of the target within a few nanoseconds. In the second high-intensity step, very quickly (in tenths of a nanosecond), the pulse power rises to values of 300-500 TW and remains during the period of 200-600 ps in the case of the 3rd Nd-laser harmonic pulse [6][7][8][9] or increases to values of 600-800 TW and persists during the period of 1-1.5 ns in the case of 2nd Nd-laser harmonic pulse [10]. This second part of the laser pulse (spike) is designed to generate a powerful igniting shock wave with a pressure of several hundred megabars.…”
Section: Introductionmentioning
confidence: 99%
“…This facility will provide energy 2.8 Megajoule (MJ) of the 2nd Nd-laser harmonic radiation in 192 beams [49,50]. The target proposed in [10] is considered. The parameters were optimized based on numerical simulations performed without taking into account the fast-electron generation.…”
Section: Introductionmentioning
confidence: 99%
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“…Christopherson et al 19 show that preheat is worse for lower adiabat implosions, and Colaïtis et al 20 demonstrates that the inclusion of an ablator can help to reduce the penetration (thus preheat) of the hot electrons. Trela et al 16 and Bel'kov et al 31 demonstrate that the timing of the high-intensity spike can also change the amount of hot-electron preheat. The target and laser pulse shape design might be key to determine whether hot electrons have a harmful or beneficial effect to SI.…”
Section: Introductionmentioning
confidence: 99%