2012
DOI: 10.1063/1.4719686
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Abstract: The first inertial confinement fusion implosion experiments with equimolar deuterium-tritium thermonuclear fuel have been performed on the National Ignition Facility. These experiments use 0.17 mg of fuel with the potential for ignition and significant fusion yield conditions. The thermonuclear fuel has been fielded as a cryogenic layer on the inside of a spherical plastic capsule that is mounted in the center of a cylindrical gold hohlraum. Heating the hohlraum with 192 laser beams for a total laser energy of… Show more

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Cited by 101 publications
(37 citation statements)
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“…The results of the implosion optimization campaign using the surrogate targets, discussed above, are used to set most details of the target and laser pulse for cryogenic layered capsule experiments, as discussed shortly after the first round of optimization by Glenzer et al [41] Nevertheless, some physics issues that I.3 Target Physics 55 result from the layer itself can only be addressed with cryogenic layered target experiments; these include instability growth at the hot spot/main fuel interface and at the ablator/main fuel interface as well as surrogacy issues arising from differences between the tuning targets and cryogenic layered targets. The shape of the hot spot, spatial distribution of compressed fuel in the main DT layer, mass remaining, velocity, and velocity profile of the imploding fuel layer can produce slight variations between a surrogate and a layered target.…”
Section: Cryogenic Layered Implosionsmentioning
confidence: 99%
“…The results of the implosion optimization campaign using the surrogate targets, discussed above, are used to set most details of the target and laser pulse for cryogenic layered capsule experiments, as discussed shortly after the first round of optimization by Glenzer et al [41] Nevertheless, some physics issues that I.3 Target Physics 55 result from the layer itself can only be addressed with cryogenic layered target experiments; these include instability growth at the hot spot/main fuel interface and at the ablator/main fuel interface as well as surrogacy issues arising from differences between the tuning targets and cryogenic layered targets. The shape of the hot spot, spatial distribution of compressed fuel in the main DT layer, mass remaining, velocity, and velocity profile of the imploding fuel layer can produce slight variations between a surrogate and a layered target.…”
Section: Cryogenic Layered Implosionsmentioning
confidence: 99%
“…increase in UV laser energy from 1.1 MJ to 1.7 MJ), the hohlraum X-rays parameters [12,13], symmetry [14] and velocity [15] of the pellet implosion as well as in parameters of the compressed fuel [16]. In particular, in the first implosion experiment with cryogenic (0.17 mg) DT fuel, performed with 192 UV laser beams of total energy of 1.6 MJ, extremely high compressed fuel parameters were achieved [16]: the fuel density ρ f ≈ 600 g/cm 3 (more than 2000 of the solid DT density), the fuel areal density ρ f r f ≈ 1 g/cm 2 and the average ion temperature of the fuel T ≈ 3.5 keV, and, as a result, 10 15 fusion neutrons were produced. Although these parameters are still lower than required for ignition and significant energy gain, it is believed that this goal is to be reached within next two years.…”
Section: Central Hot Spot Ignition Schemementioning
confidence: 99%
“…The National Ignition Facility (NIF) utilizes a suite of complex, state of the art instruments in order to understand the dynamics of Inertial Confinement Fusion (ICF) [1,2] and high energy density experiments [3]. A streak camera, called Streaked Polar Instrumentation for Diagnosing Energetic Radiation (SPIDER), is capable of measuring the temporal flux of emitted x-rays from 7keV to 40keV with a temporal resolution and accuracy of σ < 20ps [4].…”
Section: Introductionmentioning
confidence: 99%