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Title: Mix and hydrodynamic instabilities on NIF

Abstract

Several new platforms have been developed to experimentally measure hydrodynamic instabilities in all phases of indirect-drive, inertial confinement fusion implosions on National Ignition Facility. At the ablation front, instability growth of pre-imposed modulations was measured with a face-on, x-ray radiography platform in the linear regime using the Hydrodynamic Growth Radiography (HGR) platform. Modulation growth of "native roughness" modulations and engineering features (fill tubes and capsule support membranes) were measured in conditions relevant to layered DT implosions. A new experimental platform was developed to measure instability growth at the ablator-ice interface. Here in the deceleration phase of implosions, several experimental platforms were developed to measure both low-mode asymmetries and high-mode perturbations near peak compression with x-ray and nuclear techniques. In one innovative technique, the self-emission from the hot spot was enhanced with argon dopant to "self-backlight" the shell in-flight. To stabilize instability growth, new "adiabat-shaping" techniques were developed using the HGR platform and applied in layered DT implosions.

Authors:
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  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. General Atomics, San Diego, CA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1378520
Report Number(s):
LLNL-JRNL-728861
Journal ID: ISSN 1748-0221
Grant/Contract Number:  
AC52-07NA27344; NA0001808
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 12; Journal Issue: 06; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 70 PLASMA PHYSICS AND FUSION

Citation Formats

Smalyuk, V. A., Robey, H. F., Casey, D. T., Clark, D. S., Döppner, T., Haan, S. W., Hammel, B. A., MacPhee, A. G., Martinez, D., Milovich, J. L., Peterson, J. L., Pickworth, L., Pino, J. E., Raman, K., Tipton, R., Weber, C. R., Baker, K. L., Bachmann, B., Hopkins, L. F. Berzak, Bond, E., Caggiano, J. A., Callahan, D. A., Celliers, P. M., Cerjan, C., Dixit, S. N., Edwards, M. J., Felker, S., Field, J. E., Fittinghoff, D. N., Gharibyan, N., Grim, G. P., Hamza, A. V., Hatarik, R., Hohenberger, M., Hsing, W. W., Hurricane, O. A., Jancaitis, K. S., Jones, O. S., Khan, S., Kroll, J. J., Lafortune, K. N., Landen, O. L., Ma, T., MacGowan, B. J., Masse, L., Moore, A. S., Nagel, S. R., Nikroo, A., Pak, A., Patel, P. K., Remington, B. A., Sayre, D. B., Spears, B. K., Stadermann, M., Tommasini, R., Widmayer, C. C., Yeamans, C. B., Crippen, J., Farrell, M., Giraldez, E., Rice, N., Wilde, C. H., Volegov, P. L., and Johnson, M. Gatu. Mix and hydrodynamic instabilities on NIF. United States: N. p., 2017. Web. doi:10.1088/1748-0221/12/06/C06001.
Smalyuk, V. A., Robey, H. F., Casey, D. T., Clark, D. S., Döppner, T., Haan, S. W., Hammel, B. A., MacPhee, A. G., Martinez, D., Milovich, J. L., Peterson, J. L., Pickworth, L., Pino, J. E., Raman, K., Tipton, R., Weber, C. R., Baker, K. L., Bachmann, B., Hopkins, L. F. Berzak, Bond, E., Caggiano, J. A., Callahan, D. A., Celliers, P. M., Cerjan, C., Dixit, S. N., Edwards, M. J., Felker, S., Field, J. E., Fittinghoff, D. N., Gharibyan, N., Grim, G. P., Hamza, A. V., Hatarik, R., Hohenberger, M., Hsing, W. W., Hurricane, O. A., Jancaitis, K. S., Jones, O. S., Khan, S., Kroll, J. J., Lafortune, K. N., Landen, O. L., Ma, T., MacGowan, B. J., Masse, L., Moore, A. S., Nagel, S. R., Nikroo, A., Pak, A., Patel, P. K., Remington, B. A., Sayre, D. B., Spears, B. K., Stadermann, M., Tommasini, R., Widmayer, C. C., Yeamans, C. B., Crippen, J., Farrell, M., Giraldez, E., Rice, N., Wilde, C. H., Volegov, P. L., & Johnson, M. Gatu. Mix and hydrodynamic instabilities on NIF. United States. doi:10.1088/1748-0221/12/06/C06001.
Smalyuk, V. A., Robey, H. F., Casey, D. T., Clark, D. S., Döppner, T., Haan, S. W., Hammel, B. A., MacPhee, A. G., Martinez, D., Milovich, J. L., Peterson, J. L., Pickworth, L., Pino, J. E., Raman, K., Tipton, R., Weber, C. R., Baker, K. L., Bachmann, B., Hopkins, L. F. Berzak, Bond, E., Caggiano, J. A., Callahan, D. A., Celliers, P. M., Cerjan, C., Dixit, S. N., Edwards, M. J., Felker, S., Field, J. E., Fittinghoff, D. N., Gharibyan, N., Grim, G. P., Hamza, A. V., Hatarik, R., Hohenberger, M., Hsing, W. W., Hurricane, O. A., Jancaitis, K. S., Jones, O. S., Khan, S., Kroll, J. J., Lafortune, K. N., Landen, O. L., Ma, T., MacGowan, B. J., Masse, L., Moore, A. S., Nagel, S. R., Nikroo, A., Pak, A., Patel, P. K., Remington, B. A., Sayre, D. B., Spears, B. K., Stadermann, M., Tommasini, R., Widmayer, C. C., Yeamans, C. B., Crippen, J., Farrell, M., Giraldez, E., Rice, N., Wilde, C. H., Volegov, P. L., and Johnson, M. Gatu. Thu . "Mix and hydrodynamic instabilities on NIF". United States. doi:10.1088/1748-0221/12/06/C06001. https://www.osti.gov/servlets/purl/1378520.
@article{osti_1378520,
title = {Mix and hydrodynamic instabilities on NIF},
author = {Smalyuk, V. A. and Robey, H. F. and Casey, D. T. and Clark, D. S. and Döppner, T. and Haan, S. W. and Hammel, B. A. and MacPhee, A. G. and Martinez, D. and Milovich, J. L. and Peterson, J. L. and Pickworth, L. and Pino, J. E. and Raman, K. and Tipton, R. and Weber, C. R. and Baker, K. L. and Bachmann, B. and Hopkins, L. F. Berzak and Bond, E. and Caggiano, J. A. and Callahan, D. A. and Celliers, P. M. and Cerjan, C. and Dixit, S. N. and Edwards, M. J. and Felker, S. and Field, J. E. and Fittinghoff, D. N. and Gharibyan, N. and Grim, G. P. and Hamza, A. V. and Hatarik, R. and Hohenberger, M. and Hsing, W. W. and Hurricane, O. A. and Jancaitis, K. S. and Jones, O. S. and Khan, S. and Kroll, J. J. and Lafortune, K. N. and Landen, O. L. and Ma, T. and MacGowan, B. J. and Masse, L. and Moore, A. S. and Nagel, S. R. and Nikroo, A. and Pak, A. and Patel, P. K. and Remington, B. A. and Sayre, D. B. and Spears, B. K. and Stadermann, M. and Tommasini, R. and Widmayer, C. C. and Yeamans, C. B. and Crippen, J. and Farrell, M. and Giraldez, E. and Rice, N. and Wilde, C. H. and Volegov, P. L. and Johnson, M. Gatu},
abstractNote = {Several new platforms have been developed to experimentally measure hydrodynamic instabilities in all phases of indirect-drive, inertial confinement fusion implosions on National Ignition Facility. At the ablation front, instability growth of pre-imposed modulations was measured with a face-on, x-ray radiography platform in the linear regime using the Hydrodynamic Growth Radiography (HGR) platform. Modulation growth of "native roughness" modulations and engineering features (fill tubes and capsule support membranes) were measured in conditions relevant to layered DT implosions. A new experimental platform was developed to measure instability growth at the ablator-ice interface. Here in the deceleration phase of implosions, several experimental platforms were developed to measure both low-mode asymmetries and high-mode perturbations near peak compression with x-ray and nuclear techniques. In one innovative technique, the self-emission from the hot spot was enhanced with argon dopant to "self-backlight" the shell in-flight. To stabilize instability growth, new "adiabat-shaping" techniques were developed using the HGR platform and applied in layered DT implosions.},
doi = {10.1088/1748-0221/12/06/C06001},
journal = {Journal of Instrumentation},
number = 06,
volume = 12,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}

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