Hot-spot mix in large-scale HDC implosions at NIF

A. B. Zylstra; D. T. Casey; A. Kritcher; L. Pickworth; B. Bachmann; K. Baker; J. Biener; T. Braun; D. Clark; V. Geppert-Kleinrath; M. Hohenberger; C. Kong; S. Le Pape; A. Nikroo; N. Rice; M. Rubery; M. Stadermann; D. Strozzi; C. Thomas; P. Volegov; C. Weber; C. Wild; C. Wilde; D. A. Callahan; O. A. Hurricane

doi:10.1063/5.0003779

Hot-spot mix in large-scale HDC implosions at NIF

A. B. Zylstra
, D. T. Casey
, A. Kritcher
, L. Pickworth
, B. Bachmann
, K. Baker
, J. Biener
, T. Braun
, D. Clark
, V. Geppert-Kleinrath
, M. Hohenberger
, C. Kong
, S. Le Pape
, A. Nikroo
, N. Rice
, M. Rubery
, M. Stadermann
, D. Strozzi
, C. Thomas
, P. Volegov

C. Weber, C. Wild, C. Wilde, D. A. Callahan, O. A. Hurricane

Research output: Contribution to journal › Article › peer-review

Abstract

Mix of high-Z material from the capsule into the fuel can severely degrade the performance of inertial fusion implosions. On the Hybrid B campaign, testing the largest high-density-carbon capsules yet fielded at the National Ignition Facility, several shots show signatures of high levels of hot-spot mix. We attribute a ∼ 40 % yield degradation on these shots to the hot-spot mix, comparable to the level of degradation from large P2 asymmetries observed on some shots. A range of instability growth factors and diamond crystallinity were tested and they do not determine the level of mix for these implosions, which is instead set by the capsule quality.

Original language	English
Article number	092709
Journal	Physics of Plasmas
Volume	27
Issue number	9
DOIs	https://doi.org/10.1063/5.0003779
Publication status	Published - 1 Sept 2020
Externally published	Yes

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Zylstra, A. B., Casey, D. T., Kritcher, A., Pickworth, L., Bachmann, B., Baker, K., Biener, J., Braun, T., Clark, D., Geppert-Kleinrath, V., Hohenberger, M., Kong, C., Le Pape, S., Nikroo, A., Rice, N., Rubery, M., Stadermann, M., Strozzi, D., Thomas, C., ... Hurricane, O. A. (2020). Hot-spot mix in large-scale HDC implosions at NIF. Physics of Plasmas, 27(9), Article 092709. https://doi.org/10.1063/5.0003779

@article{1e02c8d26e4d4e94a67c33e5dd9f3267,

title = "Hot-spot mix in large-scale HDC implosions at NIF",

abstract = "Mix of high-Z material from the capsule into the fuel can severely degrade the performance of inertial fusion implosions. On the Hybrid B campaign, testing the largest high-density-carbon capsules yet fielded at the National Ignition Facility, several shots show signatures of high levels of hot-spot mix. We attribute a ∼ 40 \% yield degradation on these shots to the hot-spot mix, comparable to the level of degradation from large P2 asymmetries observed on some shots. A range of instability growth factors and diamond crystallinity were tested and they do not determine the level of mix for these implosions, which is instead set by the capsule quality.",

author = "Zylstra, \{A. B.\} and Casey, \{D. T.\} and A. Kritcher and L. Pickworth and B. Bachmann and K. Baker and J. Biener and T. Braun and D. Clark and V. Geppert-Kleinrath and M. Hohenberger and C. Kong and \{Le Pape\}, S. and A. Nikroo and N. Rice and M. Rubery and M. Stadermann and D. Strozzi and C. Thomas and P. Volegov and C. Weber and C. Wild and C. Wilde and Callahan, \{D. A.\} and Hurricane, \{O. A.\}",

note = "Publisher Copyright: {\textcopyright} 2020 Author(s).",

year = "2020",

month = sep,

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doi = "10.1063/5.0003779",

language = "English",

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journal = "Physics of Plasmas",

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Zylstra, AB, Casey, DT, Kritcher, A, Pickworth, L, Bachmann, B, Baker, K, Biener, J, Braun, T, Clark, D, Geppert-Kleinrath, V, Hohenberger, M, Kong, C, Le Pape, S, Nikroo, A, Rice, N, Rubery, M, Stadermann, M, Strozzi, D, Thomas, C, Volegov, P, Weber, C, Wild, C, Wilde, C, Callahan, DA & Hurricane, OA 2020, 'Hot-spot mix in large-scale HDC implosions at NIF', Physics of Plasmas, vol. 27, no. 9, 092709. https://doi.org/10.1063/5.0003779

TY - JOUR

T1 - Hot-spot mix in large-scale HDC implosions at NIF

AU - Zylstra, A. B.

AU - Casey, D. T.

AU - Kritcher, A.

AU - Pickworth, L.

AU - Bachmann, B.

AU - Baker, K.

AU - Biener, J.

AU - Braun, T.

AU - Clark, D.

AU - Geppert-Kleinrath, V.

AU - Hohenberger, M.

AU - Kong, C.

AU - Le Pape, S.

AU - Nikroo, A.

AU - Rice, N.

AU - Rubery, M.

AU - Stadermann, M.

AU - Strozzi, D.

AU - Thomas, C.

AU - Volegov, P.

AU - Weber, C.

AU - Wild, C.

AU - Wilde, C.

AU - Callahan, D. A.

AU - Hurricane, O. A.

PY - 2020/9/1

Y1 - 2020/9/1

N2 - Mix of high-Z material from the capsule into the fuel can severely degrade the performance of inertial fusion implosions. On the Hybrid B campaign, testing the largest high-density-carbon capsules yet fielded at the National Ignition Facility, several shots show signatures of high levels of hot-spot mix. We attribute a ∼ 40 % yield degradation on these shots to the hot-spot mix, comparable to the level of degradation from large P2 asymmetries observed on some shots. A range of instability growth factors and diamond crystallinity were tested and they do not determine the level of mix for these implosions, which is instead set by the capsule quality.

AB - Mix of high-Z material from the capsule into the fuel can severely degrade the performance of inertial fusion implosions. On the Hybrid B campaign, testing the largest high-density-carbon capsules yet fielded at the National Ignition Facility, several shots show signatures of high levels of hot-spot mix. We attribute a ∼ 40 % yield degradation on these shots to the hot-spot mix, comparable to the level of degradation from large P2 asymmetries observed on some shots. A range of instability growth factors and diamond crystallinity were tested and they do not determine the level of mix for these implosions, which is instead set by the capsule quality.

U2 - 10.1063/5.0003779

DO - 10.1063/5.0003779

M3 - Article

AN - SCOPUS:85081662744

SN - 1070-664X

VL - 27

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 9

M1 - 092709

ER -

Hot-spot mix in large-scale HDC implosions at NIF

Abstract

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