61 to 70 of 570 Results
Feb 18, 2025
A.S. Moore, L. Divol, B. Bachmann, R. Bionta, D. Bradley, D.T. Casey, P. Celliers, H. Chen, A. Do, E. Dewald, M. Eckart, D. Fittinghoff, J. Frenje, M. Gatu-Johnson, H. Geppert-Kleinrath, V. Geppert-Kleinrath, G. Grim, K. Hahn, M. Hohenberger, J. Holder, O. Hurricane, N. Izumi, S. Kerr, S.F. Khan, J.D. Kilkenny, Y. Kim, B. Kozioziemski, N. Lemos, A.G. MacPhee, P. Michel, M. Millot, K.D. Meaney, S. Nagel, A. Pak, J.E. Ralph, J.S. Ross, M.S. Rubery, D.J. Schlossberg, V. Smalyuk, G. Swadling, R. Tommasini, C. Trosseille, A.B. Zylstra, A. Mackinnon, J.D. Moody, O.L. Landen, R. Town, 2025, "Diagnosing inertial confinement fusion ignition", https://doi.org/10.7910/DVN/GFLBKD, Harvard Dataverse, V1
Fusion ignition by inertial confinement requires compression and heating of the fusion fuel to temperatures in excess of 5 keV and densities exceeding hundreds of g/cc. In August 2021 this scientific milestone was surpassed at the National Ignition Facility (NIF), when the Lawson criterion for ignition was exceeded generating 1.37MJ of fusion energ... |
Feb 18, 2025
J. L. Ball, E. Panontin, S. Mackie, R. A. Tinguely, P. Raj, 2025, "Evaluating deuterated-xylene for use as a fusion neutron spectrometer", https://doi.org/10.7910/DVN/MX19CX, Harvard Dataverse, V1
The spectrum of neutrons emitted by thermonuclear plasmas encodes information about the fuel ion distribution function. Measuring these fast neutron spectra with sufficient resolution allows for measurement of plasma properties like the ion temperature and strength and energy of fast ion populations. Liquid organic scintillators are a commonly used... |
R.A. Tinguely, J. Gonzalez-Martin, Y. Todo, 2025, "Hybrid kinetic-MHD modeling of alpha-driven TAEs in the SPARC tokamak", https://doi.org/10.7910/DVN/GJIXOZ, Harvard Dataverse, V1
As the magnetic confinement fusion community prepares for the next generation of fusion devices and burning plasmas, there is still a question of whether fast ions (FIs) will drive MHD instabilities, causing significant redistribution or even loss of FIs, thereby leading to reduced plasma performance and possibly threatening the integrity of the fi... |
Feb 4, 2025
C. A. Williams , , R. Betti, , V. Gopalaswamy, J. P. Knauer, C. J. Forrest, A. Lees, R. Ejaz, P. S. Farmakis, D. Cao, P. B. Radha, K. S. Anderson, S. P. Regan, V. Yu Glebov , R. C. Shah, C. Stoeckl, S. Ivancic, K. Churnetski, R. T. Janezic, C. Fella, M. J. Rosenberg, M. J. Bonino, D. R. Harding, W. T. Shmayda , J. Carroll-Nellenback , S. X. Hu, R. Epstein, T. J. B. Collins, C. A. Thomas, I. V. Igumenshchev, V. N. Goncharov, W. Theobald , K. M. Woo, J. A. Marozas, K. A. Bauer , S. Sampat, L. J. Waxer, D. Turnbull, P. V. Heuer , H. McClow, L. Ceurvorst, W. Scullin , D. H. Edgell, M. Koch, D. Bredesen, M. Gatu Johnson , J. A. Frenje, R. D. Petrasso, C. Shuldberg , M. Farrell, J. Murray , D. Guzman, B. Serrato, S. F. B. Morse , M. Labuzeta , C. Deeney, E. M. Campbell, 2024, "Demonstration of hot-spot fuel gain exceeding unity in direct-drive inertial confinement fusion implosions", https://doi.org/10.7910/DVN/SJBTHT, Harvard Dataverse, V2
Irradiating a small capsule containing deuterium and tritium fuel directly with intense laser light causes it to implode, which creates a plasma hot enough to initiate fusion reactions between the fuel nuclei. Here we report on such laser direct-drive experiments and observe that the fusion reactions produce more energy than the amount of energy in... |
Feb 4, 2025
V. Gopalaswamy , C. A. Williams , R. Betti, D. Patel, J. P. Knauer, A. Lees, D. Cao, E. M. Campbell, P. Farmakis, R. Ejaz, K. S. Anderson, R. Epstein, J. Carroll-Nellenbeck , I. V. Igumenshchev, J. A. Marozas , P. B. Radha, A. A. Solodov , C. A. Thomas, K. M. Woo, T. J. B. Collins, S. X. Hu , W. Scullin, D. Turnbull, V. N. Goncharov, K. Churnetski, C. J. Forrest, V. Yu. Glebov, P. V. Heuer, H. McClow, R. C. Shah, C. Stoeckl, W. Theobald, D. H. Edgell, S. Ivancic , M. J. Rosenberg, S. P. Regan, D. Bredesen, C. Fella, M. Koch, R. T. Janezic, M. J. Bonino, D. R. Harding, K. A. Bauer , S. Sampat, L. J. Waxer, M. Labuzeta , S. F. B. Morse , M. Gatu-Johnson , R. D. Petrasso, J. A. Frenje, J. Murray , B. Serrato, D. Guzman, C. Shuldberg , M. Farrell, C. Deeney, 2024, "Achieving A Hydrodynamically Equivalent Burning Plasma in Direct-Drive Laser Fusion", https://doi.org/10.7910/DVN/APCCNI, Harvard Dataverse, V2
Focussing laser light onto the surface of a small target filled with deuterium and tritium implodes it and leads to the creation of a hot and dense plasma, in which thermonuclear fusion reactions occur. In order for the plasma to become self-sustaining, the heating of the plasma must be dominated by the energy provided by the fusion reactions—a con... |
Feb 4, 2025
A. Pak, A. B. Zylstra, , K. L. Baker, D. T. Casey, E. Dewald, L. Divol, M. Hohenberger, A. S. Moore, J. E. Ralph, D. J. Schlossberg, R. Tommasini, N. Aybar, B. Bachmann, R. M. Bionta, D. Fittinghoff, M. Gatu Johnson, H. Geppert Kleinrath, V. Geppert Kleinrath, K. D. Hahn, M. S. Rubery, O. L. Landen, J. D. Moody, L. Aghaian, A. Allen, S. H. Baxamusa, S. D. Bhandarkar, J. Biener, N. W. Birge, T. Braun, T. M. Briggs, C. Choate, D. S. Clark, J. W. Crippen, C. Danly, T. Döppner, M. Durocher, M. Erickson, T. Fehrenbach, M. Freeman, M. Havre, S. Hayes, T. Hilsabeck, J. P. Holder, K. D. Humbird, O. A. Hurricane, N. Izumi, S. M. Kerr, S. F. Khan, Y. H. Kim, C. Kong, J. Jeet, B. Kozioziemski, A. L. Kritcher, K. M. Lamb, N. C. Lemos, B. J. MacGowan, A. J. Mackinnon, A. G. MacPhee, E. V. Marley, K. Meaney, M. Millot, J.-M. G. Di Nicola, A. Nikroo, R. Nora, M. Ratledge, J. S. Ross, S. J. Shin, V. A. Smalyuk, M. Stadermann, S. Stoupin, T. Suratwala, C. Trosseille, B. Van Wonterghem, C. R. Weber, C. Wild, C. Wilde, P. T. Wooddy, B. N. Woodworth, C. V. Young, 2024, "Observations and properties of the first laboratory fusion experiment to exceed a target gain of unity", https://doi.org/10.7910/DVN/LPXHUD, Harvard Dataverse, V2
An indirect-drive inertial fusion experiment on the National Ignition Facility was driven using 2.05 MJ of laser light at a wavelength of 351 nm and produced 3.1 ± 0.16 MJ of total fusion yield, producing a target gain G = 1.5 ± 0.1 exceeding unity for the first time in a laboratory experiment [Phys. Rev. E 109, 025204 (2024)]. Herein we describe t... |
Jan 31, 2025
B. Reichelt, R. Kishimori, Y. Lawrence, C. Wink, M. Gatu Johnson, T. Johnson, P. Adrian, K. Baker, D. Casey, D. Clark, S. Dannhoff, M. Eckart, T. Evans, H. Geppert-Kleinrath, D. Gibson, K. Hahn, D. Higginson, N. Izumi, N. Kabadi, S. Kerr, J. Kunimune, O. Landen, E. Mariscal, R. Marsh, D. Martinez, K. Meaney, J. Pearcy, R. Petrasso, M. Rubery, D. Rusby, L. Russell, D. Schlossberg, V. Smalyuk, R. Tommasini, J. Frenje, C. Li, 2025, "Ultra-fast single-crystal CVD diamonds in the particle time-of-flight (PTOF) detector for low yield burn-history measurements on the NIF", https://doi.org/10.7910/DVN/KKIJXN, Harvard Dataverse, V1
The Particle Time of Flight (PTOF) diagnostic is a Chemical Vapor Deposition (CVD) diamond-based detector and is the only diagnostic for measuring nuclear bang times of low yield (< 1013) shots on the National Ignition Facility (NIF). Recently, a comprehensive study of detector impulse responses revealed certain detectors with very fast and consist... |
Jan 31, 2025
D T. Casey, J. Kunimune, O. A. Hurricane, O L. Landen, P. Springer, R. M. Bionta, C. V. Young, R. C. Nora, B. J. MacGowan, J. A. Gaffney, B. Kustowski, C. Weber, A. Kritcher, J. Milovich, S. Haan, M. Gatu Johnson, D. Schlossberg, S. Kerr, P. L. Volegov, D. N. Fittinghoff, V. Geppert-Kleinrath, C. H. Wilde, M. Freeman, 2025, "A multi-rocket piston model to study three-dimensional asymmetries in implosions at the national ignition facility", https://doi.org/10.7910/DVN/MUWZVI, Harvard Dataverse, V1
Ignition and gain greater than unity has been achieved in inertial confinement fusion (ICF) implosions at the National Ignition Facility (NIF). These accomplishments required implosions that produced high hotspot pres- sures that are inertially confined by a dense shell of DT fuel. However, even in the burning and igniting plasma regime, 3D asymmet... |
Jan 29, 2025
D. Silvagni, O. Grover, A. Stagni, J. W. Hughes, M. A. Miller, B. Lomanowski, G. Ciraolo, M. Dunne, T. Eich, L. Frassinetti, C. Giroud, I. Jepu, A. Kallenbach, A. Kirjasuo, A. Kuang, T. Luda, C. Perez von Thun, T. Pu ̈tterich, H. J. Sun, H. Zohm, the ASDEX Upgrade team, JET contributors, the EUROfusion tokamak exploitation team, 2025, "The separatrix electron density in JET, ASDEX Upgrade and Alcator C-Mod H-mode plasmas: A common evaluation procedure and correlation with engineering parameters", https://doi.org/10.7910/DVN/VGGPBL, Harvard Dataverse, V1
The separatrix electron density is an important parameter for core-edge scenario integration in tokamak devices, as it influences plasma confinement, divertor detachment and disruption avoidance. This quantity has been measured in H-mode discharges on JET, ASDEX Upgrade and Alcator C-Mod by applying the same fitting function to Thomson scattering m... |
Y. Lawrence, B.L. Reichelt, C.W. Wink, G. Rigon, M. Gatu Johnson, C.K. Li, J.A. Frenje, 2025, "Determination of the response for the National Ignition Facility Particle Time Of Flight (PTOF) detector using Single Particle Counting", https://doi.org/10.7910/DVN/HAPHRN, Harvard Dataverse, V1
The Particle Time of Flight (PTOF) detector is a chemical vapor deposition diamond-based detector used to measure bang times in low-yield (<∼ 10^15 neutrons) experiments at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL). Historically, the impulse response for PTOF diamond detectors has been obtained from x-ray... |
