Search Results - "Volegov, P. L."

Impact of Localized Radiative Loss on Inertial Confinement Fusion Implosions by Pak, A, Divol, L, Weber, C R, Hopkins, L F Berzak, Clark, D S, Dewald, E L, Fittinghoff, D N, Geppert-Kleinrath, V, Hohenberger, M, Le Pape, S, Ma, T, MacPhee, A G, Mariscal, D A, Marley, E, Moore, A S, Pickworth, L A, Volegov, P L, Wilde, C, Hurricane, O A, Patel, P K

“…The impact to fusion energy production due to the radiative loss from a localized mix in inertial confinement implosions using high density carbon capsule…”
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Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility by Schlossberg, D. J., Grim, G. P., Casey, D. T., Moore, A. S., Nora, R., Bachmann, B., Benedetti, L. R., Bionta, R. M., Eckart, M. J., Field, J. E., Fittinghoff, D. N., Gatu Johnson, M., Geppert-Kleinrath, V., Hartouni, E. P., Hatarik, R., Hsing, W. W., Jarrott, L. C., Khan, S. F., Kilkenny, J. D., Landen, O. L., MacGowan, B. J., Mackinnon, A. J., Meaney, K. D., Munro, D. H., Nagel, S. R., Pak, A., Patel, P. K., Spears, B. K., Volegov, P. L., Young, C. V.

“…Inertial confinement fusion implosions designed to have minimal fluid motion at peak compression often show significant linear flows in the laboratory,…”
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SQUID-based systems for co-registration of ultra-low field nuclear magnetic resonance images and magnetoencephalography by Matlashov, A.N., Burmistrov, E., Magnelind, P.E., Schultz, L., Urbaitis, A.V., Volegov, P.L., Yoder, J., Espy, M.A.

“…► Co-registration of magnetoencephalography and ultra-low field MRI. ► Description of the design of a hybrid system. ► Optimization of pick-up coils for…”
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High-Performance Indirect-Drive Cryogenic Implosions at High Adiabat on the National Ignition Facility by Baker, K L, Thomas, C A, Casey, D T, Khan, S, Spears, B K, Nora, R, Woods, T, Milovich, J L, Berger, R L, Strozzi, D, Clark, D, Hohenberger, M, Hurricane, O A, Callahan, D A, Landen, O L, Bachmann, B, Benedetti, R, Bionta, R, Celliers, P M, Fittinghoff, D, Goyon, C, Grim, G, Hatarik, R, Izumi, N, Gatu Johnson, M, Kyrala, G, Ma, T, Millot, M, Nagel, S R, Pak, A, Patel, P K, Turnbull, D, Volegov, P L, Yeamans, C

“…To reach the pressures and densities required for ignition, it may be necessary to develop an approach to design that makes it easier for simulations to guide…”
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Time-Resolved Fuel Density Profiles of the Stagnation Phase of Indirect-Drive Inertial Confinement Implosions by Tommasini, Riccardo, Landen, O. L., Berzak Hopkins, L., Hatchett, S. P., Kalantar, D. H., Hsing, W. W., Alessi, D. A., Ayers, S. L., Bhandarkar, S. D., Bowers, M. W., Bradley, D. K., Conder, A. D., Di Nicola, J. M., Di Nicola, P., Divol, L., Fittinghoff, D., Gururangan, G., Hall, G. N., Hamamoto, M., Hargrove, D. R., Hartouni, E. P., Heebner, J. E., Herriot, S. I., Hermann, M. R., Holder, J. P., Holunga, D. M., Homoelle, D., Iglesias, C. A., Izumi, N., Kemp, A. J., Kohut, T., Kroll, J. J., LaFortune, K., Lawson, J. K., Lowe-Webb, R., MacKinnon, A. J., Martinez, D., Masters, N. D., Mauldin, M. P., Milovich, J., Nikroo, A., Okui, J. K., Park, J., Prantil, M., Pelz, L. J., Schoff, M., Sigurdsson, R., Volegov, P. L., Vonhof, S., Zobrist, T. L., Wallace, R. J., Walters, C. F., Wegner, P., Widmayer, C., Williams, W. H., Youngblood, K., Edwards, M. J., Herrmann, M. C.

“…The implosion efficiency in inertial confinement fusion depends on the degree of stagnated fuel compression, density uniformity, sphericity, and minimum…”
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Improved Performance of High Areal Density Indirect Drive Implosions at the National Ignition Facility using a Four-Shock Adiabat Shaped Drive by Casey, D T, Milovich, J L, Smalyuk, V A, Clark, D S, Robey, H F, Pak, A, MacPhee, A G, Baker, K L, Weber, C R, Ma, T, Park, H-S, Döppner, T, Callahan, D A, Haan, S W, Patel, P K, Peterson, J L, Hoover, D, Nikroo, A, Yeamans, C B, Merrill, F E, Volegov, P L, Fittinghoff, D N, Grim, G P, Edwards, M J, Landen, O L, Lafortune, K N, MacGowan, B J, Widmayer, C C, Sayre, D B, Hatarik, R, Bond, E J, Nagel, S R, Benedetti, L R, Izumi, N, Khan, S, Bachmann, B, Spears, B K, Cerjan, C J, Gatu Johnson, M, Frenje, J A

“…Hydrodynamic instabilities can cause capsule defects and other perturbations to grow and degrade implosion performance in ignition experiments at the National…”
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On concomitant gradients in low-field MRI by Volegov, P.L., Mosher, J.C., Espy, M.A., Kraus, R.H.

“…Growing interest in magnetic resonance imaging (MRI) at ultra-low magnetic fields (ULF, ∼μT fields) has been motivated by several advantages over its…”
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MRI with an atomic magnetometer suitable for practical imaging applications by Savukov, I.M., Zotev, V.S., Volegov, P.L., Espy, M.A., Matlashov, A.N., Gomez, J.J., Kraus, R.H.

“…Conventionally implemented MRI is performed in a strong magnetic field, typically >1 T. The high fields, however, can lead to many limitations. To overcome…”
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Forward model theoretical basis for a superconducting imaging surface magnetoencephalography system by Maharajh, K, Volegov, P L, Kraus, R H

“…A novel magnetoencephalography (MEG) system was designed at Los Alamos National Laboratory (LANL) that incorporates a helmet-shaped superconductor in order to…”
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Ultra-low field NMR measurements of liquids and gases with short relaxation times by Volegov, P.L., Matlachov, A.N., Kraus, R.H.

“…Interest in nuclear magnetic resonance measurements at ultra-low magnetic fields (ULF, ∼μT fields) has been motivated by various benefits and novel…”
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Achievement of Target Gain Larger than Unity in an Inertial Fusion Experiment by Abu-Shawareb, H, Acree, R, Adams, P, Adams, J, Addis, B, Aden, R, Adrian, P, Afeyan, B B, Aggleton, M, Aghaian, L, Aguirre, A, Aikens, D, Akre, J, Albert, F, Albrecht, M, Albright, B J, Albritton, J, Alcala, J, Alday, C, Alessi, D A, Alexander, N, Alfonso, J, Alfonso, N, Alger, E, Ali, S J, Ali, Z A, Allen, A, Alley, W E, Amala, P, Amendt, P A, Amick, P, Ammula, S, Amorin, C, Ampleford, D J, Anderson, R W, Anklam, T, Antipa, N, Appelbe, B, Aracne-Ruddle, C, Araya, E, Archuleta, T N, Arend, M, Arnold, P, Arnold, T, Arsenlis, A, Asay, J, Atherton, L J, Atkinson, D, Atkinson, R, Auerbach, J M, Austin, B, Auyang, L, Awwal, A A S, Aybar, N, Ayers, J, Ayers, S, Ayers, T, Azevedo, S, Bachmann, B, Back, C A, Bae, J, Bailey, D S, Bailey, J, Baisden, T, Baker, K L, Baldis, H, Barber, D, Barberis, M, Barker, D, Barnes, A, Barnes, C W, Barrios, M A, Barty, C, Bass, I, Batha, S H, Baxamusa, S H, Bazan, G, Beagle, J K, Beale, R, Beck, B R, Beck, J B, Bedzyk, M, Beeler, R G, Behrendt, W, Belk, L, Bell, P, Belyaev, M, Benage, J F, Bennett, G, Benedetti, L R, Benedict, L X, Berger, R L, Bernat, T, Bernstein, L A, Berry, B, Bertolini, L, Besenbruch, G, Betcher, J, Bettenhausen, R

“…On December 5, 2022, an indirect drive fusion implosion on the National Ignition Facility (NIF) achieved a target gain G_{target} of 1.5. This is the first…”
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A simple method for CT-Scanner calibration against effective photon energy by Konovalov, A. B., Volegov, P. L., Dmitrakov, Yu. L.

“…An original method for CT-scanner calibration against effective photon energy is presented. It is based on optimization of the CT-scanner output characteristic…”
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SQUID-based simultaneous detection of NMR and biomagnetic signals at ultra-low magnetic fields by Espy, M.A., Matlachov, A.N., Volegov, P.L., Mosher, J.C., Kraus, R.H.

“…Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) at ultra-low magnetic fields (ULF, fields of /spl sim//spl mu/T) have several advantages…”
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First high-convergence cryogenic implosion in a near-vacuum hohlraum by Berzak Hopkins, L F, Meezan, N B, Le Pape, S, Divol, L, Mackinnon, A J, Ho, D D, Hohenberger, M, Jones, O S, Kyrala, G, Milovich, J L, Pak, A, Ralph, J E, Ross, J S, Benedetti, L R, Biener, J, Bionta, R, Bond, E, Bradley, D, Caggiano, J, Callahan, D, Cerjan, C, Church, J, Clark, D, Döppner, T, Dylla-Spears, R, Eckart, M, Edgell, D, Field, J, Fittinghoff, D N, Gatu Johnson, M, Grim, G, Guler, N, Haan, S, Hamza, A, Hartouni, E P, Hatarik, R, Herrmann, H W, Hinkel, D, Hoover, D, Huang, H, Izumi, N, Khan, S, Kozioziemski, B, Kroll, J, Ma, T, MacPhee, A, McNaney, J, Merrill, F, Moody, J, Nikroo, A, Patel, P, Robey, H F, Rygg, J R, Sater, J, Sayre, D, Schneider, M, Sepke, S, Stadermann, M, Stoeffl, W, Thomas, C, Town, R P J, Volegov, P L, Wild, C, Wilde, C, Woerner, E, Yeamans, C, Yoxall, B, Kilkenny, J, Landen, O L, Hsing, W, Edwards, M J

“…Recent experiments on the National Ignition Facility [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum…”
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Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility by Döppner, T, Callahan, D A, Hurricane, O A, Hinkel, D E, Ma, T, Park, H-S, Berzak Hopkins, L F, Casey, D T, Celliers, P, Dewald, E L, Dittrich, T R, Haan, S W, Kritcher, A L, MacPhee, A, Le Pape, S, Pak, A, Patel, P K, Springer, P T, Salmonson, J D, Tommasini, R, Benedetti, L R, Bond, E, Bradley, D K, Caggiano, J, Church, J, Dixit, S, Edgell, D, Edwards, M J, Fittinghoff, D N, Frenje, J, Gatu Johnson, M, Grim, G, Hatarik, R, Havre, M, Herrmann, H, Izumi, N, Khan, S F, Kline, J L, Knauer, J, Kyrala, G A, Landen, O L, Merrill, F E, Moody, J, Moore, A S, Nikroo, A, Ralph, J E, Remington, B A, Robey, H F, Sayre, D, Schneider, M, Streckert, H, Town, R, Turnbull, D, Volegov, P L, Wan, A, Widmann, K, Wilde, C H, Yeamans, C

“…We report on the first layered deuterium-tritium (DT) capsule implosions indirectly driven by a "high-foot" laser pulse that were fielded in depleted uranium…”
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Demonstration of transmission high energy electron microscopy by Merrill, F. E., Goett, J., Gibbs, J. W., Imhoff, S. D., Mariam, F. G., Morris, C. L., Neukirch, L. P., Perry, J., Poulson, D., Simpson, R., Volegov, P. L., Walstrom, P. L., Wilde, C. H., Hast, C., Jobe, K., Smith, T., Wienands, U., Clarke, A. J., Tourret, D.

“…High energy electrons have been used to investigate an extension of transmission electron microscopy. This technique, transmission high energy electron…”
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Instrumentation for simultaneous detection of low field NMR and biomagnetic signals by Matlachov, A.N., Volegov, P.L., Espy, M.A., Stolz, R., Fritzsch, L., Zakosarenko, V., Meyer, H.-G., Kraus, R.H.

“…We have built and demonstrated a simple system with open geometry that measures biomagnetic signals such as magnetoencephalogram (MEG), magnetocardiogram (MCG)…”
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Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility [plus supplemental information] by Schlossberg, D.  J., Grim, G.  P., Casey, D.  T., Moore, A.  S., Nora, R., Bachmann, B., Benedetti, L.  R., Bionta, R.  M., Eckart, M.  J., Field, J.  E., Fittinghoff, D.  N., Gatu Johnson, M., Geppert-Kleinrath, V., Hartouni, E.  P., Hatarik, R., Hsing, W.  W., Jarrott, L.  C., Khan, S.  F., Kilkenny, J.  D., Landen, O.  L., MacGowan, B.  J., Mackinnon, A.  J., Meaney, K.  D., Munro, D.  H., Nagel, S.  R., Pak, A., Patel, P.  K., Spears, B.  K., Volegov, P.  L., Young, C.  V.

“…Inertial confinement fusion implosions designed to have minimal fluid motion at peak compression often show significant linear flows in the laboratory,…”
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Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility by Schlossberg, D.  J., Grim, G.  P., Casey, D.  T., Moore, A.  S., Nora, R., Bachmann, B., Benedetti, L.  R., Bionta, R.  M., Eckart, M.  J., Field, J.  E., Fittinghoff, D.  N., Gatu Johnson, M., Geppert-Kleinrath, V., Hartouni, E.  P., Hatarik, R., Hsing, W.  W., Jarrott, L.  C., Khan, S.  F., Kilkenny, J.  D., Landen, O.  L., MacGowan, B.  J., Mackinnon, A.  J., Meaney, K.  D., Munro, D.  H., Nagel, S.  R., Pak, A., Patel, P.  K., Spears, B.  K., Volegov, P.  L., Young, C.  V.

“…Inertial confinement fusion implosions designed to have minimal fluid motion at peak compression often show significant linear flows in the laboratory,…”
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Thin shell, high velocity inertial confinement fusion implosions on the national ignition facility by Ma, T, Hurricane, O A, Callahan, D A, Barrios, M A, Casey, D T, Dewald, E L, Dittrich, T R, Döppner, T, Haan, S W, Hinkel, D E, Berzak Hopkins, L F, Le Pape, S, MacPhee, A G, Pak, A, Park, H-S, Patel, P K, Remington, B A, Robey, H F, Salmonson, J D, Springer, P T, Tommasini, R, Benedetti, L R, Bionta, R, Bond, E, Bradley, D K, Caggiano, J, Celliers, P, Cerjan, C J, Church, J A, Dixit, S, Dylla-Spears, R, Edgell, D, Edwards, M J, Field, J, Fittinghoff, D N, Frenje, J A, Gatu Johnson, M, Grim, G, Guler, N, Hatarik, R, Herrmann, H W, Hsing, W W, Izumi, N, Jones, O S, Khan, S F, Kilkenny, J D, Knauer, J, Kohut, T, Kozioziemski, B, Kritcher, A, Kyrala, G, Landen, O L, MacGowan, B J, Mackinnon, A J, Meezan, N B, Merrill, F E, Moody, J D, Nagel, S R, Nikroo, A, Parham, T, Ralph, J E, Rosen, M D, Rygg, J R, Sater, J, Sayre, D, Schneider, M B, Shaughnessy, D, Spears, B K, Town, R P J, Volegov, P L, Wan, A, Widmann, K, Wilde, C H, Yeamans, C

“…Experiments have recently been conducted at the National Ignition Facility utilizing inertial confinement fusion capsule ablators that are 175 and 165  μm in…”
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