Studies in capsule design for mid-Z ion-driven fast ignition

Albright, B. J.; Schmitt, Mark J.; Fernández, Juan; Cragg, George E.; Tregillis, I. L.; Yin, L.; Hegelich, B. M.

doi:10.1088/1742-6596/112/2/022029

Cited by 13 publications

(12 citation statements)

References 14 publications

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“…This is achieved with a laser power of ∼150 TW at an intensity of ∼2 × 10 20 W cm −2 , well below the peak of current technology at 1.1 PW [28] and 2 × 10 22 W cm −2 [29], respectively. The peak particle energy achieved is already suitable for many applications, including IFI [30][31][32]. This mechanism scales to multi-GeV ion energy with currently available PW-class systems, bringing laser-driven accelerators substantially closer to deployment in advanced accelerators [33], new diagnostics [34] and medical physics applications [35].…”

Section: Introductionmentioning

confidence: 99%

Laser-driven ion acceleration from relativistically transparent nanotargets

et al. 2013

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Here we present experimental results on laser-driven ion acceleration from relativistically transparent, overdense plasmas in the break-out afterburner (BOA) regime. Experiments were preformed at the Trident ultra-high contrast laser facility at Los Alamos National Laboratory, and at the Texas Petawatt laser facility, located in the University of Texas at Austin. It is shown that when the target becomes relativistically transparent to the laser, an epoch of dramatic acceleration of ions occurs that lasts until the electron density in the expanding target reduces to the critical density in the non-relativistic limit. For given laser parameters, the optimal target thickness yielding the highest maximum ion energy is one in which this time window for ion acceleration overlaps with the intensity peak of the laser pulse. A simple analytic model of relativistically induced transparency is presented for plasma expansion at the

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Section: Introductionmentioning

confidence: 99%

Laser-driven ion acceleration from relativistically transparent nanotargets

et al. 2013

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“…These new schemes are suitable to accelerate ions heavier than protons to the energies required for fast ignition applications. Fernández et al [20,21] suggested the use of quasimonoenergetic carbon ions with kinetic energies of a few hundreds of MeV to ignite pre-compressed fusion targets [22]. Use of heavier ions has been studied in Ref [23].…”

Section: Introductionmentioning

confidence: 99%

Fast ignition of inertial fusion targets by laser-driven carbon beams

et al. 2009

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Two-dimensional simulations of ion beam driven fast ignition are presented. Ignition energies of protons with Maxwellian spectrum and carbon ions with quasimonoenergetic and Maxwellian energy distributions are evaluated. The effect of the coronal plasma surrounding the compressed deuterium-tritium is studied for three different fuel density distributions. It is found that quasi- monoenergetic ions have better coupling with the compressed deuterium-tritium and substantially lower ignition energies. Comparison of quasimonoenergetic carbon ions and relativistic electrons as ignitor beams shows similar laser energy requirements, provided that a laser to quasimonoenergetic carbon ion conversion efficiency around 10% can be achieved.Comment: 8 pages, 10 figures, published in Physics of Plasma

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“…Обсуждалось создание двух " горячих пятен" в одном сгустке сжатого горючего как с использованием одинаковых конусов [31,[38][39][40], так и без их использования [41][42][43][44]. Одно из преимуществ мишеней с конусами связано с возможностью создания кольцеобразных " горячих пятен" при нагреве горючего ионами, ускоренными лазерным излучением [37], что интересно, в первую очередь, как способ минимизации энергии, необходимой для формирования " горячего пятна" [27].…”

Section: концепция быстрого зажигания и некоторые варианты мишеней бы...unclassified

“…Кроме того, создание двух кольцеобразных " горячих пятен" может привести к генерации сходящейся ударной волны, создающей третье " горячее пятно", что, в свою очередь, приведет к высокой эффективности выгорания горючего [31]. Подвод энергии к одному сгустку сжатого горючего с двух противоположных сторон без использования или с использованием конусов может служить и для создания одного " горячего пятна" [34,43,44]. На рис.…”

Section: концепция быстрого зажигания и некоторые варианты мишеней бы...unclassified

К Вопросу Об Ускорении Термоядерных Мишеней Быстрого Зажигания С Двумя Конусами

Шматов¹

2022

Журнал Технической Физики

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The problems of acceleration of fast ignition thermonuclear targets with two cones for their high-precision injection into region near the center of the reactor chamber are considered and the possibility of solution of these problems is shown. A brief review of discussed variants of such targets and of their main advantages, related to ignition of microexplosion and simplicity of providing preservation of targets’ workability during their flight in the reactor chamber, is presented. Fast ignition by microexplosion of double-sided conical target and the method to estimate acceptable speed of stabilizing rotation of thermonuclear target are proposed.

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Studies in capsule design for mid-Z ion-driven fast ignition

Cited by 13 publications

References 14 publications

Laser-driven ion acceleration from relativistically transparent nanotargets

Laser-driven ion acceleration from relativistically transparent nanotargets

Fast ignition of inertial fusion targets by laser-driven carbon beams

К Вопросу Об Ускорении Термоядерных Мишеней Быстрого Зажигания С Двумя Конусами

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