Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward

B. A. Remington; L. J. Atherton; L. R. Benedetti; L. Berzak-Hopkins; D. K. Bradley; D. A. Callahan; D. T. Casey; P. M. Celliers; C. J. Cerjan; D. S. Clark; E. L. Dewald; T. R. Dittrich; S. N. Dixit; T. Döppner; D. H. Edgell; M. J. Edwards; R. Epstein; J. Frenje; M. Gatu-Johnson; S. Glenn; S. H. Glenzer; G. Grim; S. W. Haan; B. A. Hammel; A. Hamza; D. Hicks; W. W. Hsing; O. Hurricane; N. Izumi; O. S. Jones; M. H. Key; S. F. Khan; J. D. Kilkenny; J. L. Kline; G. A. Kyrala; O. L. Landen; S. Le Pape; J. D. Lindl; T. Ma; B. J. MacGowan; A. J. MacKinnon; A. G. MacPhee; N. B. Meezan; J. D. Moody; E. I. Moses; A. Nikroo; A. Pak; T. Parham; H. S. Park; P. K. Patel; R. Petrasso; J. Pino; J. E. Ralph; K. Raman; S. P. Regan; H. F. Robey; J. S. Ross; B. K. Spears; V. A. Smalyuk; P. T. Springer; L. J. Suter; R. Tipton; R. Tommasini; R. P. Town; S. V. Weber

doi:10.1088/1742-6596/688/1/012090

Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward

B. A. Remington
, L. J. Atherton
, L. R. Benedetti
, L. Berzak-Hopkins
, D. K. Bradley
, D. A. Callahan
, D. T. Casey
, P. M. Celliers
, C. J. Cerjan
, D. S. Clark
, E. L. Dewald
, T. R. Dittrich
, S. N. Dixit
, T. Döppner
, D. H. Edgell
, M. J. Edwards
, R. Epstein
, J. Frenje
, M. Gatu-Johnson
, S. Glenn

S. H. Glenzer, G. Grim, S. W. Haan, B. A. Hammel, A. Hamza, D. Hicks, W. W. Hsing, O. Hurricane, N. Izumi, O. S. Jones, M. H. Key, S. F. Khan, J. D. Kilkenny, J. L. Kline, G. A. Kyrala, O. L. Landen, S. Le Pape, J. D. Lindl, T. Ma, B. J. MacGowan, A. J. MacKinnon, A. G. MacPhee, N. B. Meezan, J. D. Moody, E. I. Moses, A. Nikroo, A. Pak, T. Parham, H. S. Park, P. K. Patel, R. Petrasso, J. Pino, J. E. Ralph, K. Raman, S. P. Regan, H. F. Robey, J. S. Ross, B. K. Spears, V. A. Smalyuk, P. T. Springer, L. J. Suter, R. Tipton, R. Tommasini, R. P. Town, S. V. Weber

Research output: Contribution to journal › Conference article › peer-review

Abstract

The goals of the Mix Campaign are to determine how mix affects performance, locate the "mix cliff", locate the source of the mix, and develop mitigation methods that allow performance to be increased. We have used several different drive pulse shapes and capsule designs in the Mix Campaign, to understand sensitivity to drive peak power, level of coast, rise time to peak power, adiabat, and dopant level in the capsule. Ablator material mixing into the hot spot has been shown conclusively with x-ray spectroscopy. The observed neutron yield drops steeply when the hot spot mix mass becomes too large. The mix appears to be driven by ablation- front Rayleigh-Taylor instabilities. A high foot, higher adiabat drive has a more stable ablation front and has allowed the mix mass in the hot spot to be reduced significantly. Two recent high foot shots achieved neutron yields > 10¹⁵ and measured neutron yield over clean 1D simulation (YOC) > 50%, which was one of the central goals of the Mix Campaign.

Original language	English
Article number	012090
Journal	Journal of Physics: Conference Series
Volume	688
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/688/1/012090
Publication status	Published - 1 Apr 2016
Externally published	Yes
Event	8th International Conference on Inertial Fusion Sciences and Applications, IFSA 2013 - Nara, Japan Duration: 8 Sept 2013 → 13 Sept 2013

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10.1088/1742-6596/688/1/012090

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Remington, B. A., Atherton, L. J., Benedetti, L. R., Berzak-Hopkins, L., Bradley, D. K., Callahan, D. A., Casey, D. T., Celliers, P. M., Cerjan, C. J., Clark, D. S., Dewald, E. L., Dittrich, T. R., Dixit, S. N., Döppner, T., Edgell, D. H., Edwards, M. J., Epstein, R., Frenje, J., Gatu-Johnson, M., ... Weber, S. V. (2016). Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward. Journal of Physics: Conference Series, 688(1), Article 012090. https://doi.org/10.1088/1742-6596/688/1/012090

@article{95270bd4c460403a882e0f87ca0800ae,

title = "Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward",

abstract = "The goals of the Mix Campaign are to determine how mix affects performance, locate the {"}mix cliff{"}, locate the source of the mix, and develop mitigation methods that allow performance to be increased. We have used several different drive pulse shapes and capsule designs in the Mix Campaign, to understand sensitivity to drive peak power, level of coast, rise time to peak power, adiabat, and dopant level in the capsule. Ablator material mixing into the hot spot has been shown conclusively with x-ray spectroscopy. The observed neutron yield drops steeply when the hot spot mix mass becomes too large. The mix appears to be driven by ablation- front Rayleigh-Taylor instabilities. A high foot, higher adiabat drive has a more stable ablation front and has allowed the mix mass in the hot spot to be reduced significantly. Two recent high foot shots achieved neutron yields > 1015 and measured neutron yield over clean 1D simulation (YOC) > 50\%, which was one of the central goals of the Mix Campaign.",

author = "Remington, \{B. A.\} and Atherton, \{L. J.\} and Benedetti, \{L. R.\} and L. Berzak-Hopkins and Bradley, \{D. K.\} and Callahan, \{D. A.\} and Casey, \{D. T.\} and Celliers, \{P. M.\} and Cerjan, \{C. J.\} and Clark, \{D. S.\} and Dewald, \{E. L.\} and Dittrich, \{T. R.\} and Dixit, \{S. N.\} and T. D{\"o}ppner and Edgell, \{D. H.\} and Edwards, \{M. J.\} and R. Epstein and J. Frenje and M. Gatu-Johnson and S. Glenn and Glenzer, \{S. H.\} and G. Grim and Haan, \{S. W.\} and Hammel, \{B. A.\} and A. Hamza and D. Hicks and Hsing, \{W. W.\} and O. Hurricane and N. Izumi and Jones, \{O. S.\} and Key, \{M. H.\} and Khan, \{S. F.\} and Kilkenny, \{J. D.\} and Kline, \{J. L.\} and Kyrala, \{G. A.\} and Landen, \{O. L.\} and \{Le Pape\}, S. and Lindl, \{J. D.\} and T. Ma and MacGowan, \{B. J.\} and MacKinnon, \{A. J.\} and MacPhee, \{A. G.\} and Meezan, \{N. B.\} and Moody, \{J. D.\} and Moses, \{E. I.\} and A. Nikroo and A. Pak and T. Parham and Park, \{H. S.\} and Patel, \{P. K.\} and R. Petrasso and J. Pino and Ralph, \{J. E.\} and K. Raman and Regan, \{S. P.\} and Robey, \{H. F.\} and Ross, \{J. S.\} and Spears, \{B. K.\} and Smalyuk, \{V. A.\} and Springer, \{P. T.\} and Suter, \{L. J.\} and R. Tipton and R. Tommasini and Town, \{R. P.\} and Weber, \{S. V.\}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 8th International Conference on Inertial Fusion Sciences and Applications, IFSA 2013 ; Conference date: 08-09-2013 Through 13-09-2013",

year = "2016",

month = apr,

day = "1",

doi = "10.1088/1742-6596/688/1/012090",

language = "English",

volume = "688",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

number = "1",

}

Remington, BA, Atherton, LJ, Benedetti, LR, Berzak-Hopkins, L, Bradley, DK, Callahan, DA, Casey, DT, Celliers, PM, Cerjan, CJ, Clark, DS, Dewald, EL, Dittrich, TR, Dixit, SN, Döppner, T, Edgell, DH, Edwards, MJ, Epstein, R, Frenje, J, Gatu-Johnson, M, Glenn, S, Glenzer, SH, Grim, G, Haan, SW, Hammel, BA, Hamza, A, Hicks, D, Hsing, WW, Hurricane, O, Izumi, N, Jones, OS, Key, MH, Khan, SF, Kilkenny, JD, Kline, JL, Kyrala, GA, Landen, OL, Le Pape, S, Lindl, JD, Ma, T, MacGowan, BJ, MacKinnon, AJ, MacPhee, AG, Meezan, NB, Moody, JD, Moses, EI, Nikroo, A, Pak, A, Parham, T, Park, HS, Patel, PK, Petrasso, R, Pino, J, Ralph, JE, Raman, K, Regan, SP, Robey, HF, Ross, JS, Spears, BK, Smalyuk, VA, Springer, PT, Suter, LJ, Tipton, R, Tommasini, R, Town, RP & Weber, SV 2016, 'Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward', Journal of Physics: Conference Series, vol. 688, no. 1, 012090. https://doi.org/10.1088/1742-6596/688/1/012090

TY - JOUR

T1 - Hydrodynamic instabilities and mix studies on NIF

T2 - 8th International Conference on Inertial Fusion Sciences and Applications, IFSA 2013

AU - Remington, B. A.

AU - Atherton, L. J.

AU - Benedetti, L. R.

AU - Berzak-Hopkins, L.

AU - Bradley, D. K.

AU - Callahan, D. A.

AU - Casey, D. T.

AU - Celliers, P. M.

AU - Cerjan, C. J.

AU - Clark, D. S.

AU - Dewald, E. L.

AU - Dittrich, T. R.

AU - Dixit, S. N.

AU - Döppner, T.

AU - Edgell, D. H.

AU - Edwards, M. J.

AU - Epstein, R.

AU - Frenje, J.

AU - Gatu-Johnson, M.

AU - Glenn, S.

AU - Glenzer, S. H.

AU - Grim, G.

AU - Haan, S. W.

AU - Hammel, B. A.

AU - Hamza, A.

AU - Hicks, D.

AU - Hsing, W. W.

AU - Hurricane, O.

AU - Izumi, N.

AU - Jones, O. S.

AU - Key, M. H.

AU - Khan, S. F.

AU - Kilkenny, J. D.

AU - Kline, J. L.

AU - Kyrala, G. A.

AU - Landen, O. L.

AU - Le Pape, S.

AU - Lindl, J. D.

AU - Ma, T.

AU - MacGowan, B. J.

AU - MacKinnon, A. J.

AU - MacPhee, A. G.

AU - Meezan, N. B.

AU - Moody, J. D.

AU - Moses, E. I.

AU - Nikroo, A.

AU - Pak, A.

AU - Parham, T.

AU - Park, H. S.

AU - Patel, P. K.

AU - Petrasso, R.

AU - Pino, J.

AU - Ralph, J. E.

AU - Raman, K.

AU - Regan, S. P.

AU - Robey, H. F.

AU - Ross, J. S.

AU - Spears, B. K.

AU - Smalyuk, V. A.

AU - Springer, P. T.

AU - Suter, L. J.

AU - Tipton, R.

AU - Tommasini, R.

AU - Town, R. P.

AU - Weber, S. V.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - The goals of the Mix Campaign are to determine how mix affects performance, locate the "mix cliff", locate the source of the mix, and develop mitigation methods that allow performance to be increased. We have used several different drive pulse shapes and capsule designs in the Mix Campaign, to understand sensitivity to drive peak power, level of coast, rise time to peak power, adiabat, and dopant level in the capsule. Ablator material mixing into the hot spot has been shown conclusively with x-ray spectroscopy. The observed neutron yield drops steeply when the hot spot mix mass becomes too large. The mix appears to be driven by ablation- front Rayleigh-Taylor instabilities. A high foot, higher adiabat drive has a more stable ablation front and has allowed the mix mass in the hot spot to be reduced significantly. Two recent high foot shots achieved neutron yields > 1015 and measured neutron yield over clean 1D simulation (YOC) > 50%, which was one of the central goals of the Mix Campaign.

AB - The goals of the Mix Campaign are to determine how mix affects performance, locate the "mix cliff", locate the source of the mix, and develop mitigation methods that allow performance to be increased. We have used several different drive pulse shapes and capsule designs in the Mix Campaign, to understand sensitivity to drive peak power, level of coast, rise time to peak power, adiabat, and dopant level in the capsule. Ablator material mixing into the hot spot has been shown conclusively with x-ray spectroscopy. The observed neutron yield drops steeply when the hot spot mix mass becomes too large. The mix appears to be driven by ablation- front Rayleigh-Taylor instabilities. A high foot, higher adiabat drive has a more stable ablation front and has allowed the mix mass in the hot spot to be reduced significantly. Two recent high foot shots achieved neutron yields > 1015 and measured neutron yield over clean 1D simulation (YOC) > 50%, which was one of the central goals of the Mix Campaign.

U2 - 10.1088/1742-6596/688/1/012090

DO - 10.1088/1742-6596/688/1/012090

M3 - Conference article

AN - SCOPUS:84964884497

SN - 1742-6588

VL - 688

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012090

Y2 - 8 September 2013 through 13 September 2013

ER -

Hydrodynamic instabilities and mix studies on NIF: Predictions, observations, and a path forward

Abstract

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