Hohlraum drive and implosion experiments on Nova

Kilkenny, J. D.; Suter, L. J.; Cable, M. D.; Darrow, C. B.; Dittrich, T. R.; Haan, S. W.; Hammel, B. A.; Hatchett, S. p.; Kauffman, R. L.; Keane, C. J.; Kornblum, H. N.; Landen, O. L.; Lane, S. M.; Lerche, R. A.; Murphy, T. J.; Phillion, D. W.; Porter, J. L.; Powers, L J.; Rees, D. B.; Thiessen, A. R.; Turner, R. E.; Wallace, R.; Hauer, A. A.; Hsing, W. W.

Title: Hohlraum drive and implosion experiments on Nova

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Abstract

High gain inertial confinement fusion will most readily be achieved with hot spot ignition, where a small mass of gaseous fuel is compressed to a high density and heated to {approximately}10 keV, igniting a cooler, surrounding fuel. Recent laser driven implosions have achieved high shell density but without a well defined hot spot. X-ray driven implosions require high hohlraum drive pressure and symmetry. Eight years of experiments on Nova have led to a relatively comprehensive understanding of the energetics and symmetry of laser heated hohlraums. Relatively simple models can explain most of the features observed these experiments. Detailed 2-D Lasnex simulations satisfactorily reproduce Nova`s drive and symmetry scaling data bases, giving it credibility as a target design tool for the proposed National Ignition Facility (NIF). Implosion experiments achieved high convergence ratios (initial capsule radius/final fuel radius) in the range required for ignition scale capsules, and resulted in an imploded configuration of high density glass with hot gas fill, equivalent to the hot spot configuration of ignition scale capsules.

Authors:

Kilkenny, J. D. ^[1]; Suter, L. J. ^[1]; Cable, M. D. ^[1]; Darrow, C. B. ^[1]; Dittrich, T. R. ^[1]; Haan, S. W. ^[1]; Hammel, B. A. ^[1]; Hatchett, S. p. ^[1]; Kauffman, R. L. ^[1]; Keane, C. J. ^[1]; Kornblum, H. N. ^[1]; Landen, O. L. ^[1]; Lane, S. M. ^[1]; Lerche, R. A. ^[1]; Murphy, T. J. ^[1]; Phillion, D. W. ^[1]; Porter, J. L. ^[1]; Powers, L J. ^[1]; Rees, D. B. ^[1]; Thiessen, A. R. ^[1] more »

Lawrence Livermore National Lab., CA (United States)

Publication Date:: Thu Jul 28 00:00:00 EDT 1994

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 10185663

Report Number(s):: UCRL-JC-118255; CONF-940933-5
ON: DE95000555; IN: IAEA-SN--60/BII-3; TRN: 94:020304

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Conference

Resource Relation:: Conference: 15. international conference on plasma physics and controlled nuclear fusion research, Madrid (Spain), 26 Sep - 1 Oct 1994; Other Information: PBD: 28 Jul 1994

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NOVA FACILITY; INDIRECT DRIVE LASER IMPLOSION; GOLD; LASER TARGETS; MATHEMATICAL MODELS; SYMMETRY; CONVERGENCE; DESIGN; 700411; INERTIAL CONFINEMENT DEVICES

Citation Formats


                    Kilkenny, J. D., Suter, L. J., Cable, M. D., Darrow, C. B., Dittrich, T. R., Haan, S. W., Hammel, B. A., Hatchett, S. p., Kauffman, R. L., Keane, C. J., Kornblum, H. N., Landen, O. L., Lane, S. M., Lerche, R. A., Murphy, T. J., Phillion, D. W., Porter, J. L., Powers, L J., Rees, D. B., Thiessen, A. R., Turner, R. E., Wallace, R., Hauer, A. A., and Hsing, W. W. Hohlraum drive and implosion experiments on Nova.  United States: N. p., 1994. 
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                    Kilkenny, J. D., Suter, L. J., Cable, M. D., Darrow, C. B., Dittrich, T. R., Haan, S. W., Hammel, B. A., Hatchett, S. p., Kauffman, R. L., Keane, C. J., Kornblum, H. N., Landen, O. L., Lane, S. M., Lerche, R. A., Murphy, T. J., Phillion, D. W., Porter, J. L., Powers, L J., Rees, D. B., Thiessen, A. R., Turner, R. E., Wallace, R., Hauer, A. A., & Hsing, W. W. Hohlraum drive and implosion experiments on Nova.  United States.

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                    Kilkenny, J. D., Suter, L. J., Cable, M. D., Darrow, C. B., Dittrich, T. R., Haan, S. W., Hammel, B. A., Hatchett, S. p., Kauffman, R. L., Keane, C. J., Kornblum, H. N., Landen, O. L., Lane, S. M., Lerche, R. A., Murphy, T. J., Phillion, D. W., Porter, J. L., Powers, L J., Rees, D. B., Thiessen, A. R., Turner, R. E., Wallace, R., Hauer, A. A., and Hsing, W. W. 1994.  
        "Hohlraum drive and implosion experiments on Nova".  United States.  https://www.osti.gov/servlets/purl/10185663.

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@article{osti_10185663,

  title        = {Hohlraum drive and implosion experiments on Nova},

  author       = {Kilkenny, J. D. and Suter, L. J. and Cable, M. D. and Darrow, C. B. and Dittrich, T. R. and Haan, S. W. and Hammel, B. A. and Hatchett, S. p. and Kauffman, R. L. and Keane, C. J. and Kornblum, H. N. and Landen, O. L. and Lane, S. M. and Lerche, R. A. and Murphy, T. J. and Phillion, D. W. and Porter, J. L. and Powers, L J. and Rees, D. B. and Thiessen, A. R. and Turner, R. E. and Wallace, R. and Hauer, A. A. and Hsing, W. W.},

  abstractNote = {High gain inertial confinement fusion will most readily be achieved with hot spot ignition, where a small mass of gaseous fuel is compressed to a high density and heated to {approximately}10 keV, igniting a cooler, surrounding fuel. Recent laser driven implosions have achieved high shell density but without a well defined hot spot. X-ray driven implosions require high hohlraum drive pressure and symmetry. Eight years of experiments on Nova have led to a relatively comprehensive understanding of the energetics and symmetry of laser heated hohlraums. Relatively simple models can explain most of the features observed these experiments. Detailed 2-D Lasnex simulations satisfactorily reproduce Nova`s drive and symmetry scaling data bases, giving it credibility as a target design tool for the proposed National Ignition Facility (NIF). Implosion experiments achieved high convergence ratios (initial capsule radius/final fuel radius) in the range required for ignition scale capsules, and resulted in an imploded configuration of high density glass with hot gas fill, equivalent to the hot spot configuration of ignition scale capsules.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/10185663},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jul 28 00:00:00 EDT 1994},

  month        = {Thu Jul 28 00:00:00 EDT 1994}

}

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