First high-convergence cryogenic implosion in a near-vacuum hohlraum

L. F. Berzak Hopkins; N. B. Meezan; S. Le Pape; L. Divol; A. J. Mackinnon; D. D. Ho; M. Hohenberger; O. S. Jones; G. Kyrala; J. L. Milovich; A. Pak; J. E. Ralph; J. S. Ross; L. R. Benedetti; J. Biener; R. Bionta; E. Bond; D. Bradley; J. Caggiano; D. Callahan; C. Cerjan; J. Church; D. Clark; T. Döppner; R. Dylla-Spears; M. Eckart; D. Edgell; J. Field; D. N. Fittinghoff; M. Gatu Johnson; G. Grim; N. Guler; S. Haan; A. Hamza; E. P. Hartouni; R. Hatarik; H. W. Herrmann; D. Hinkel; D. Hoover; H. Huang; N. Izumi; S. Khan; B. Kozioziemski; J. Kroll; T. Ma; A. Macphee; J. McNaney; F. Merrill; J. Moody; A. Nikroo; P. Patel; H. F. Robey; J. R. Rygg; J. Sater; D. Sayre; M. Schneider; S. Sepke; M. Stadermann; W. Stoeffl; C. Thomas; R. P.J. Town; P. L. Volegov; C. Wild; C. Wilde; E. Woerner; C. Yeamans; B. Yoxall; J. Kilkenny; O. L. Landen; W. Hsing; M. J. Edwards

doi:10.1103/PhysRevLett.114.175001

First high-convergence cryogenic implosion in a near-vacuum hohlraum

L. F. Berzak Hopkins, N. B. Meezan, S. Le Pape, L. Divol, A. J. Mackinnon, D. D. Ho, M. Hohenberger, O. S. Jones, G. Kyrala, J. L. Milovich, A. Pak, J. E. Ralph, J. S. Ross, L. R. Benedetti, J. Biener, R. Bionta, E. Bond, D. Bradley, J. Caggiano, D. CallahanC. Cerjan, J. Church, D. Clark, T. Döppner, R. Dylla-Spears, M. Eckart, D. Edgell, J. Field, D. N. Fittinghoff, M. Gatu Johnson, G. Grim, N. Guler, S. Haan, A. Hamza, E. P. Hartouni, R. Hatarik, H. W. Herrmann, D. Hinkel, D. Hoover, H. Huang, N. Izumi, S. Khan, B. Kozioziemski, J. Kroll, T. Ma, A. Macphee, J. McNaney, F. Merrill, J. Moody, A. Nikroo, P. Patel, H. F. Robey, J. R. Rygg, J. Sater, D. Sayre, M. Schneider, S. Sepke, M. Stadermann, W. Stoeffl, C. Thomas, R. P.J. Town, P. L. Volegov, C. Wild, C. Wilde, E. Woerner, C. Yeamans, B. Yoxall, J. Kilkenny, O. L. Landen, W. Hsing, M. J. Edwards

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Abstract

Recent experiments on the National Ignition Facility [M.J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence: a measured 40% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×1015 neutrons, with 20% calculated alpha heating at convergence ∼27×.

Original language	English (US)
Article number	175001
Journal	Physical review letters
Volume	114
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.114.175001
State	Published - Apr 29 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.114.175001

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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., ... Edwards, M. J. (2015). First high-convergence cryogenic implosion in a near-vacuum hohlraum. Physical review letters, 114(17), Article 175001. https://doi.org/10.1103/PhysRevLett.114.175001

@article{a9bb8d6669dd44048ee317dd8a324ef4,

title = "First high-convergence cryogenic implosion in a near-vacuum hohlraum",

abstract = "Recent experiments on the National Ignition Facility [M.J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence: a measured 40\% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×1015 neutrons, with 20\% calculated alpha heating at convergence ∼27×.",

author = "\{Berzak Hopkins\}, \{L. F.\} and Meezan, \{N. B.\} and \{Le Pape\}, S. and L. Divol and Mackinnon, \{A. J.\} and Ho, \{D. D.\} and M. Hohenberger and Jones, \{O. S.\} and G. Kyrala and Milovich, \{J. L.\} and A. Pak and Ralph, \{J. E.\} and Ross, \{J. S.\} and Benedetti, \{L. R.\} and J. Biener and R. Bionta and E. Bond and D. Bradley and J. Caggiano and D. Callahan and C. Cerjan and J. Church and D. Clark and T. D{\"o}ppner and R. Dylla-Spears and M. Eckart and D. Edgell and J. Field and Fittinghoff, \{D. N.\} and \{Gatu Johnson\}, M. and G. Grim and N. Guler and S. Haan and A. Hamza and Hartouni, \{E. P.\} and R. Hatarik and Herrmann, \{H. W.\} and D. Hinkel and D. Hoover and H. Huang and N. Izumi and S. Khan and B. Kozioziemski and J. Kroll and T. Ma and A. Macphee and J. McNaney and F. Merrill and J. Moody and A. Nikroo and P. Patel and Robey, \{H. F.\} and Rygg, \{J. R.\} and J. Sater and D. Sayre and M. Schneider and S. Sepke and M. Stadermann and W. Stoeffl and C. Thomas and Town, \{R. P.J.\} and Volegov, \{P. L.\} and C. Wild and C. Wilde and E. Woerner and C. Yeamans and B. Yoxall and J. Kilkenny and Landen, \{O. L.\} and W. Hsing and Edwards, \{M. J.\}",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = apr,

day = "29",

doi = "10.1103/PhysRevLett.114.175001",

language = "English (US)",

volume = "114",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "17",

}

Berzak Hopkins, LF, Meezan, NB, Le Pape, S, Divol, L, Mackinnon, AJ, Ho, DD, Hohenberger, M, Jones, OS, Kyrala, G, Milovich, JL, Pak, A, Ralph, JE, Ross, JS, Benedetti, LR, 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, DN, Gatu Johnson, M, Grim, G, Guler, N, Haan, S, Hamza, A, Hartouni, EP, Hatarik, R, Herrmann, HW, 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, HF, Rygg, JR, Sater, J, Sayre, D, Schneider, M, Sepke, S, Stadermann, M, Stoeffl, W, Thomas, C, Town, RPJ, Volegov, PL, Wild, C, Wilde, C, Woerner, E, Yeamans, C, Yoxall, B, Kilkenny, J, Landen, OL, Hsing, W & Edwards, MJ 2015, 'First high-convergence cryogenic implosion in a near-vacuum hohlraum', Physical review letters, vol. 114, no. 17, 175001. https://doi.org/10.1103/PhysRevLett.114.175001

TY - JOUR

T1 - First high-convergence cryogenic implosion in a near-vacuum hohlraum

AU - Berzak Hopkins, L. F.

AU - Meezan, N. B.

AU - Le Pape, S.

AU - Divol, L.

AU - Mackinnon, A. J.

AU - Ho, D. D.

AU - Hohenberger, M.

AU - Jones, O. S.

AU - Kyrala, G.

AU - Milovich, J. L.

AU - Pak, A.

AU - Ralph, J. E.

AU - Ross, J. S.

AU - Benedetti, L. R.

AU - Biener, J.

AU - Bionta, R.

AU - Bond, E.

AU - Bradley, D.

AU - Caggiano, J.

AU - Callahan, D.

AU - Cerjan, C.

AU - Church, J.

AU - Clark, D.

AU - Döppner, T.

AU - Dylla-Spears, R.

AU - Eckart, M.

AU - Edgell, D.

AU - Field, J.

AU - Fittinghoff, D. N.

AU - Gatu Johnson, M.

AU - Grim, G.

AU - Guler, N.

AU - Haan, S.

AU - Hamza, A.

AU - Hartouni, E. P.

AU - Hatarik, R.

AU - Herrmann, H. W.

AU - Hinkel, D.

AU - Hoover, D.

AU - Huang, H.

AU - Izumi, N.

AU - Khan, S.

AU - Kozioziemski, B.

AU - Kroll, J.

AU - Ma, T.

AU - Macphee, A.

AU - McNaney, J.

AU - Merrill, F.

AU - Moody, J.

AU - Nikroo, A.

AU - Patel, P.

AU - Robey, H. F.

AU - Rygg, J. R.

AU - Sater, J.

AU - Sayre, D.

AU - Schneider, M.

AU - Sepke, S.

AU - Stadermann, M.

AU - Stoeffl, W.

AU - Thomas, C.

AU - Town, R. P.J.

AU - Volegov, P. L.

AU - Wild, C.

AU - Wilde, C.

AU - Woerner, E.

AU - Yeamans, C.

AU - Yoxall, B.

AU - Kilkenny, J.

AU - Landen, O. L.

AU - Hsing, W.

AU - Edwards, M. J.

PY - 2015/4/29

Y1 - 2015/4/29

N2 - Recent experiments on the National Ignition Facility [M.J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence: a measured 40% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×1015 neutrons, with 20% calculated alpha heating at convergence ∼27×.

AB - Recent experiments on the National Ignition Facility [M.J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence: a measured 40% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×1015 neutrons, with 20% calculated alpha heating at convergence ∼27×.

UR - https://www.scopus.com/pages/publications/84930226365

UR - https://www.scopus.com/inward/citedby.url?scp=84930226365&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.114.175001

DO - 10.1103/PhysRevLett.114.175001

M3 - Article

AN - SCOPUS:84930226365

SN - 0031-9007

VL - 114

JO - Physical review letters

JF - Physical review letters

IS - 17

M1 - 175001

ER -

First high-convergence cryogenic implosion in a near-vacuum hohlraum

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