Proton radiography measurements and models of ejecta structure in shocked Sn

J. E. Hammerberg; W. T. Buttler; A. Llobet; C. Morris; J. Goett; R. Manzanares; A. Saunders; D. Schmidt; A. Tainter; W. Vogan-Mcneil; C. Wilde

doi:10.1063/1.5044848

Proton radiography measurements and models of ejecta structure in shocked Sn

J. E. Hammerberg, W. T. Buttler, A. Llobet, C. Morris, J. Goett, R. Manzanares, A. Saunders, D. Schmidt, A. Tainter, W. Vogan-Mcneil, C. Wilde

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

15 Scopus citations

Abstract

We present the experimental validation of ejecta source, mass and velocity models using proton radiography. Ejecta mass and velocity measurements were performed under 7 atm of He gas on Sn targets with 4 concentric sinusoidal features with radial wavelength of λ=2 mm and amplitude η₀= 0.159 mm. 42 images at 275 and 400 ns intervals were obtained between 0 and 14 μs from the time of shock breakout. Volume density profiles for the spikes were determined through Abel inversion and spike, bubble and surface velocities were determined using proton radiography and also verified through Photon Doppler Velocimetry (PDV). Ejecta sheets evolve to a self-similar density distribution that depends on a scaling variable z/η_st where η_s is the spike tip velocity, z is the distance from the free surface and t is the time after shock breakout. Both the density profiles and the time dependence of the mass per unit area in the evolving spikes are in good agreement with a Richtmyer-Meshkov instability based model for ejecta production and evolution.

Original language	English
Title of host publication	Shock Compression of Condensed Matter - 2017
Subtitle of host publication	Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Editors	Marcus D. Knudson, Eric N. Brown, Ricky Chau, Timothy C. Germann, J. Matthew D. Lane, Jon H. Eggert
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735416932
DOIs	https://doi.org/10.1063/1.5044848
State	Published - Jul 3 2018
Externally published	Yes
Event	20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017 - St. Louis, United States Duration: Jul 9 2017 → Jul 14 2017

Publication series

Name	AIP Conference Proceedings
Volume	1979
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017
Country/Territory	United States
City	St. Louis
Period	07/9/17 → 07/14/17

Funding

This work was performed under the auspices of the U.S. Dept. of Energy under contract DE-AC52-06NA25396. The support of the LANL ASC-PEM and Science Campaign 1 and Science Campaign 2 programs is gratefully acknowl-edged.

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10.1063/1.5044848

Cite this

Hammerberg, J. E., Buttler, W. T., Llobet, A., Morris, C., Goett, J., Manzanares, R., Saunders, A., Schmidt, D., Tainter, A., Vogan-Mcneil, W., & Wilde, C. (2018). Proton radiography measurements and models of ejecta structure in shocked Sn. In M. D. Knudson, E. N. Brown, R. Chau, T. C. Germann, J. M. D. Lane, & J. H. Eggert (Eds.), Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter Article 080006 (AIP Conference Proceedings; Vol. 1979). American Institute of Physics Inc.. https://doi.org/10.1063/1.5044848

Hammerberg, J. E. ; Buttler, W. T. ; Llobet, A. et al. / Proton radiography measurements and models of ejecta structure in shocked Sn. Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. editor / Marcus D. Knudson ; Eric N. Brown ; Ricky Chau ; Timothy C. Germann ; J. Matthew D. Lane ; Jon H. Eggert. American Institute of Physics Inc., 2018. (AIP Conference Proceedings).

@inproceedings{999a09d7bff3416ba56fa97caa9d2404,

title = "Proton radiography measurements and models of ejecta structure in shocked Sn",

abstract = "We present the experimental validation of ejecta source, mass and velocity models using proton radiography. Ejecta mass and velocity measurements were performed under 7 atm of He gas on Sn targets with 4 concentric sinusoidal features with radial wavelength of λ=2 mm and amplitude η0= 0.159 mm. 42 images at 275 and 400 ns intervals were obtained between 0 and 14 μs from the time of shock breakout. Volume density profiles for the spikes were determined through Abel inversion and spike, bubble and surface velocities were determined using proton radiography and also verified through Photon Doppler Velocimetry (PDV). Ejecta sheets evolve to a self-similar density distribution that depends on a scaling variable z/ηst where ηs is the spike tip velocity, z is the distance from the free surface and t is the time after shock breakout. Both the density profiles and the time dependence of the mass per unit area in the evolving spikes are in good agreement with a Richtmyer-Meshkov instability based model for ejecta production and evolution.",

author = "Hammerberg, {J. E.} and Buttler, {W. T.} and A. Llobet and C. Morris and J. Goett and R. Manzanares and A. Saunders and D. Schmidt and A. Tainter and W. Vogan-Mcneil and C. Wilde",

note = "Publisher Copyright: {\textcopyright} 2018 Author(s).; 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017 ; Conference date: 09-07-2017 Through 14-07-2017",

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doi = "10.1063/1.5044848",

language = "English",

series = "AIP Conference Proceedings",

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Hammerberg, JE, Buttler, WT, Llobet, A, Morris, C, Goett, J, Manzanares, R, Saunders, A, Schmidt, D, Tainter, A, Vogan-Mcneil, W & Wilde, C 2018, Proton radiography measurements and models of ejecta structure in shocked Sn. in MD Knudson, EN Brown, R Chau, TC Germann, JMD Lane & JH Eggert (eds), Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter., 080006, AIP Conference Proceedings, vol. 1979, American Institute of Physics Inc., 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017, St. Louis, United States, 07/9/17. https://doi.org/10.1063/1.5044848

Proton radiography measurements and models of ejecta structure in shocked Sn. / Hammerberg, J. E.; Buttler, W. T.; Llobet, A. et al.
Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. ed. / Marcus D. Knudson; Eric N. Brown; Ricky Chau; Timothy C. Germann; J. Matthew D. Lane; Jon H. Eggert. American Institute of Physics Inc., 2018. 080006 (AIP Conference Proceedings; Vol. 1979).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Proton radiography measurements and models of ejecta structure in shocked Sn

AU - Hammerberg, J. E.

AU - Buttler, W. T.

AU - Llobet, A.

AU - Morris, C.

AU - Goett, J.

AU - Manzanares, R.

AU - Saunders, A.

AU - Schmidt, D.

AU - Tainter, A.

AU - Vogan-Mcneil, W.

AU - Wilde, C.

PY - 2018/7/3

Y1 - 2018/7/3

N2 - We present the experimental validation of ejecta source, mass and velocity models using proton radiography. Ejecta mass and velocity measurements were performed under 7 atm of He gas on Sn targets with 4 concentric sinusoidal features with radial wavelength of λ=2 mm and amplitude η0= 0.159 mm. 42 images at 275 and 400 ns intervals were obtained between 0 and 14 μs from the time of shock breakout. Volume density profiles for the spikes were determined through Abel inversion and spike, bubble and surface velocities were determined using proton radiography and also verified through Photon Doppler Velocimetry (PDV). Ejecta sheets evolve to a self-similar density distribution that depends on a scaling variable z/ηst where ηs is the spike tip velocity, z is the distance from the free surface and t is the time after shock breakout. Both the density profiles and the time dependence of the mass per unit area in the evolving spikes are in good agreement with a Richtmyer-Meshkov instability based model for ejecta production and evolution.

AB - We present the experimental validation of ejecta source, mass and velocity models using proton radiography. Ejecta mass and velocity measurements were performed under 7 atm of He gas on Sn targets with 4 concentric sinusoidal features with radial wavelength of λ=2 mm and amplitude η0= 0.159 mm. 42 images at 275 and 400 ns intervals were obtained between 0 and 14 μs from the time of shock breakout. Volume density profiles for the spikes were determined through Abel inversion and spike, bubble and surface velocities were determined using proton radiography and also verified through Photon Doppler Velocimetry (PDV). Ejecta sheets evolve to a self-similar density distribution that depends on a scaling variable z/ηst where ηs is the spike tip velocity, z is the distance from the free surface and t is the time after shock breakout. Both the density profiles and the time dependence of the mass per unit area in the evolving spikes are in good agreement with a Richtmyer-Meshkov instability based model for ejecta production and evolution.

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M3 - Conference contribution

AN - SCOPUS:85049806081

T3 - AIP Conference Proceedings

BT - Shock Compression of Condensed Matter - 2017

A2 - Knudson, Marcus D.

A2 - Brown, Eric N.

A2 - Chau, Ricky

A2 - Germann, Timothy C.

A2 - Lane, J. Matthew D.

A2 - Eggert, Jon H.

PB - American Institute of Physics Inc.

T2 - 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017

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Hammerberg JE, Buttler WT, Llobet A, Morris C, Goett J, Manzanares R et al. Proton radiography measurements and models of ejecta structure in shocked Sn. In Knudson MD, Brown EN, Chau R, Germann TC, Lane JMD, Eggert JH, editors, Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. American Institute of Physics Inc. 2018. 080006. (AIP Conference Proceedings). doi: 10.1063/1.5044848

Proton radiography measurements and models of ejecta structure in shocked Sn

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