Výsledky vyhledávání

3D Simulations Capture the Persistent Low-Mode Asymmetries Evident in Laser-Direct-Drive Implosions on OMEGA

Autor: A. Colaïtis, D. P. Turnbull, I. V. Igumenschev, D. Edgell, R. C. Shah, O. M. Mannion, C. Stoeckl, D. Jacob-Perkins, A. Shvydky, R. Janezic, A. Kalb, D. Cao, C. J. Forrest, J. Kwiatkowski, S. Regan, W. Theobald, V. N. Goncharov, D. H. Froula

Publikováno v: Physical Review Letters
Physical Review Letters, 2022, 129 (9), pp.095001. ⟨10.1103/PhysRevLett.129.095001⟩

Spherical implosions in inertial confinement fusion are inherently sensitive to perturbations that may arise from experimental constraints and errors. Control and mitigation of low-mode (long wavelength) perturbations is a key milestone to improving

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f9c10d173d94d52d25797a93b58b808
https://doi.org/10.1103/physrevlett.129.095001

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Measurements of the temperature and velocity of the dense fuel layer in inertial confinement fusion experiments

Autor: O. M. Mannion, A. J. Crilly, C. J. Forrest, B. D. Appelbe, R. Betti, V. Yu. Glebov, V. Gopalaswamy, J. P. Knauer, Z. L. Mohamed, C. Stoeckl, J. P. Chittenden, S. P. Regan

Publikováno v: Physical Review E. 105

The apparent ion temperature and mean velocity of the dense deuterium tritium fuel layer of an inertial confinement fusion target near peak compression have been measured using backscatter neutron spectroscopy. The average isotropic residual kinetic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d01d7233151d2c5c67222c37428731f
https://doi.org/10.1103/physreve.105.055205

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3D simulations of inertial confinement fusion implosions part 2: systematic flow anomalies and impact of low modes on performances in OMEGA experiments

Autor: A Colaïtis, I V Igumenshchev, D P Turnbull, R Shah, D Edgell, O M Mannion, C Stoeckl, D W Jacob-Perkins, A Shvydky, R Janezic, A Kalb, D Cao, C J Forrest, J Kwiatkowski, S P Regan, W Theobald, V N Goncharov, D Froula

Publikováno v: Plasma Physics and Controlled Fusion. 65:014005

We present the first 3D radiation-hydrodynamic simulations of directly driven inertial confinement fusion implosions with an inline package for polarized crossed-beam energy transfer, which were used to assess the impact of the current distributed po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e549672fa9c21ce167758fd17daafac6
https://doi.org/10.1088/1361-6587/aca78d

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Inferences of hot electron preheat and its spatial distribution in OMEGA direct drive implosions

Publikováno v: Physics of Plasmas. 29:122703

Hot electrons generated from laser plasma instabilities degrade performance of direct drive implosions by preheating the deuterium and tritium (DT) fuel resulting in early decompression and lower areal densities at stagnation. A technique to quantify

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a1d78d002ffa7b7316225bc518b03b0
https://doi.org/10.1063/5.0091220

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A new neutron time-of-flight detector for yield and ion-temperature measurements at the OMEGA Laser Facility

Autor: V. Yu. Glebov, C. J. Forrest, J. Kendrick, J. P. Knauer, O. M. Mannion, H. McClow, S. P. Regan, C. Stoeckl, B. Stanley, W. Theobald

Publikováno v: Review of Scientific Instruments. 93:093522

A new neutron time-of-flight (nTOF) detector for deuterium–deuterium (DD)-fusion yield and ion-temperature measurements was designed, installed, and calibrated for the OMEGA Laser Facility. This detector provides an additional line of sight for DD

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b020dc084d4c03fb22cdc035e6edce7
https://doi.org/10.1063/5.0101514

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Analysis of core asymmetries in inertial confinement fusion implosions using three-dimensional hot-spot reconstruction

Publikováno v: Physics of Plasmas. 29:082705

Three-dimensional effects play a crucial role during the hot-spot formation in inertial confinement fusion (ICF) implosions. A data analysis technique for 3D hot-spot reconstruction from experimental observables has been developed to characterize the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e04f70480c885cb1d76d16cc67543f42
https://doi.org/10.1063/5.0102167

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Analysis of limited coverage effects on areal density measurements in inertial confinement fusion implosions

Autor: V. Gopalaswamy, R. Betti, P. B. Radha, A. J. Crilly, K. M. Woo, A. Lees, C. Thomas, I. V. Igumenshchev, S. C. Miller, J. P. Knauer, C. Stoeckl, C. J. Forrest, O. M. Mannion, Z. L. Mohamed, H. G. Rinderknecht, P. V. Heuer

Publikováno v: Physics of Plasmas. 29:072706

Accurate diagnosis of areal density ( ρR) is critical for the inference of performance metrics in inertial confinement fusion implosions. One potential source of error in this diagnosis is the existence of low mode perturbations in the imploding tar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a589fd0c75c8be9037e907d2bc4405a
https://doi.org/10.1063/5.0085942

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Neutron backscatter edges as a diagnostic of burn propagation

Autor: A. J. Crilly, B. D. Appelbe, O. M. Mannion, C. J. Forrest, J. P. Knauer, D. J. Schlossberg, E. P. Hartouni, A. S. Moore, J. P. Chittenden

Publikováno v: Physics of Plasmas. 29:062707

High gain in hotspot-ignition inertial confinement fusion (ICF) implosions requires the propagation of thermonuclear burn from a central hotspot to the surrounding cold dense fuel. As ICF experiments enter the burning plasma regime, diagnostic signat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ed088d86e0d461cfac3d236469273e5
https://doi.org/10.1063/5.0087020

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