1
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Wicks JK, Singh S, Millot M, Fratanduono DE, Coppari F, Gorman MG, Ye Z, Rygg JR, Hari A, Eggert JH, Duffy TS, Smith RF. B1-B2 transition in shock-compressed MgO. SCIENCE ADVANCES 2024; 10:eadk0306. [PMID: 38848357 PMCID: PMC11160462 DOI: 10.1126/sciadv.adk0306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 05/02/2024] [Indexed: 06/09/2024]
Abstract
Magnesium oxide (MgO) is a major component of the Earth's mantle and is expected to play a similar role in the mantles of large rocky exoplanets. At extreme pressures, MgO transitions from the NaCl B1 crystal structure to a CsCl B2 structure, which may have implications for exoplanetary deep mantle dynamics. In this study, we constrain the phase diagram of MgO with laser-compression along the shock Hugoniot, with simultaneous measurements of crystal structure, density, pressure, and temperature. We identify the B1 to B2 phase transition between 397 and 425 gigapascal (around 9700 kelvin), in agreement with recent theory that accounts for phonon anharmonicity. From 425 to 493 gigapascal, we observe a mixed-phase region of B1 and B2 coexistence. The transformation follows the Watanabe-Tokonami-Morimoto mechanism. Our data are consistent with B2-liquid coexistence above 500 gigapascal and complete melting at 634 gigapascal. This study bridges the gap between previous theoretical and experimental studies, providing insights into the timescale of this phase transition.
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Affiliation(s)
- June K. Wicks
- Dept. of Earth & Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Saransh Singh
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Marius Millot
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | | | - Federica Coppari
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Martin G. Gorman
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Zixuan Ye
- Dept. of Earth & Planetary Sciences Div. of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - J. Ryan Rygg
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14623, USA
- Dept. of Mechanical Engineering and Dept. of Physics and Astronomy, University of Rochester, Rochester, NY 14623, USA
| | - Anirudh Hari
- Dept. of Earth & Planetary Sciences Div. of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Dept. of Materials Science and Engineering and PULSE Institute, Stanford University, Stanford, CA 94305, USA
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jon H. Eggert
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Thomas S. Duffy
- Dept. of Geosciences, Princeton University, Princeton, NJ 08544, USA
| | - Raymond F. Smith
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
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2
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Paddock RW, von der Leyen MW, Aboushelbaya R, Norreys PA, Chapman DJ, Eakins DE, Oliver M, Clarke RJ, Notley M, Baird CD, Booth N, Spindloe C, Haddock D, Irving S, Scott RHH, Pasley J, Cipriani M, Consoli F, Albertazzi B, Koenig M, Martynenko AS, Wegert L, Neumayer P, Tchórz P, Rączka P, Mabey P, Garbett W, Goshadze RMN, Karasiev VV, Hu SX. Measuring the principal Hugoniot of inertial-confinement-fusion-relevant TMPTA plastic foams. Phys Rev E 2023; 107:025206. [PMID: 36932569 DOI: 10.1103/physreve.107.025206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/09/2022] [Indexed: 06/18/2023]
Abstract
Wetted-foam layers are of significant interest for inertial-confinement-fusion capsules, due to the control they provide over the convergence ratio of the implosion and the opportunity this affords to minimize hydrodynamic instability growth. However, the equation of state for fusion-relevant foams are not well characterized, and many simulations rely on modeling such foams as a homogeneous medium with the foam average density. To address this issue, an experiment was performed using the VULCAN Nd:glass laser at the Central Laser Facility. The aim was to measure the principal Hugoniot of TMPTA plastic foams at 260mg/cm^{3}, corresponding to the density of liquid DT-wetted-foam layers, and their "hydrodynamic equivalent" capsules. A VISAR was used to obtain the shock velocity of both the foam and an α-quartz reference layer, while streaked optical pyrometry provided the temperature of the shocked material. The measurements confirm that, for the 20-120 GPa pressure range accessed, this material can indeed be well described using the equation of state of the homogeneous medium at the foam density.
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Affiliation(s)
- R W Paddock
- Department of Physics, Atomic and Laser Physics Sub-Department, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - M W von der Leyen
- Department of Physics, Atomic and Laser Physics Sub-Department, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - R Aboushelbaya
- Department of Physics, Atomic and Laser Physics Sub-Department, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - P A Norreys
- Department of Physics, Atomic and Laser Physics Sub-Department, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - D J Chapman
- Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, United Kingdom
| | - D E Eakins
- Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, United Kingdom
| | - M Oliver
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - R J Clarke
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - M Notley
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - C D Baird
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - N Booth
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - C Spindloe
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - D Haddock
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - S Irving
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - R H H Scott
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - J Pasley
- York Plasma Institute, School of Physics, Electronics and Technology, University of York, York YO10 5DD, United Kingdom
| | - M Cipriani
- ENEA, Fusion and Technology for Nuclear Safety and Security Department, C.R.Frascati, via E. Fermi 45, 00044 Frascati, Rome, Italy
| | - F Consoli
- ENEA, Fusion and Technology for Nuclear Safety and Security Department, C.R.Frascati, via E. Fermi 45, 00044 Frascati, Rome, Italy
| | - B Albertazzi
- LULI - CNRS, CEA, Sorbonne Universités, Ecole Polytechnique, Institut Polytechnique de Paris-F-91120 Palaiseau cedex, France
| | - M Koenig
- LULI - CNRS, CEA, Sorbonne Universités, Ecole Polytechnique, Institut Polytechnique de Paris-F-91120 Palaiseau cedex, France
| | - A S Martynenko
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - L Wegert
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - P Neumayer
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - P Tchórz
- Institute of Plasma Physics and Laser Microfusion, 01-497 Warsaw, Poland
| | - P Rączka
- Institute of Plasma Physics and Laser Microfusion, 01-497 Warsaw, Poland
| | - P Mabey
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - W Garbett
- AWE plc, Aldermaston, Reading, Berkshire RG7 4PR, United Kingdom
| | - R M N Goshadze
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - V V Karasiev
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - S X Hu
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
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3
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Celliers PM, Millot M. Imaging velocity interferometer system for any reflector (VISAR) diagnostics for high energy density sciences. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:011101. [PMID: 36725591 DOI: 10.1063/5.0123439] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/28/2022] [Indexed: 06/18/2023]
Abstract
Two variants of optical imaging velocimetry, specifically the one-dimensional streaked line-imaging and the two-dimensional time-resolved area-imaging versions of the Velocity Interferometer System for Any Reflector (VISAR), have become important diagnostics in high energy density sciences, including inertial confinement fusion and dynamic compression of condensed matter. Here, we give a brief review of the historical development of these techniques, then describe the current implementations at major high energy density (HED) facilities worldwide, including the OMEGA Laser Facility and the National Ignition Facility. We illustrate the versatility and power of these techniques by reviewing diverse applications of imaging VISARs for gas-gun and laser-driven dynamic compression experiments for materials science, shock physics, condensed matter physics, chemical physics, plasma physics, planetary science and astronomy, as well as a broad range of HED experiments and laser-driven inertial confinement fusion research.
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Affiliation(s)
- Peter M Celliers
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Marius Millot
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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4
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Structural complexity in ramp-compressed sodium to 480 GPa. Nat Commun 2022; 13:2534. [PMID: 35534461 PMCID: PMC9085792 DOI: 10.1038/s41467-022-29813-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 03/30/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractThe properties of all materials at one atmosphere of pressure are controlled by the configurations of their valence electrons. At extreme pressures, neighboring atoms approach so close that core-electron orbitals overlap, and theory predicts the emergence of unusual quantum behavior. We ramp-compress monovalent elemental sodium, a prototypical metal at ambient conditions, to nearly 500 GPa (5 million atmospheres). The 7-fold increase of density brings the interatomic distance to 1.74 Å well within the initial 2.03 Å of the Na+ ionic diameter, and squeezes the valence electrons into the interstitial voids suggesting the formation of an electride phase. The laser-driven compression results in pressure-driven melting and recrystallization in a billionth of a second. In situ x-ray diffraction reveals a series of unexpected phase transitions upon recrystallization, and optical reflectivity measurements show a precipitous decrease throughout the liquid and solid phases, where the liquid is predicted to have electronic localization. These data reveal the presence of a rich, temperature-driven polymorphism where core electron overlap is thought to stabilize the formation of peculiar electride states.
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5
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Ravasio A, Bethkenhagen M, Hernandez JA, Benuzzi-Mounaix A, Datchi F, French M, Guarguaglini M, Lefevre F, Ninet S, Redmer R, Vinci T. Metallization of Shock-Compressed Liquid Ammonia. PHYSICAL REVIEW LETTERS 2021; 126:025003. [PMID: 33512205 DOI: 10.1103/physrevlett.126.025003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/05/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Ammonia is predicted to be one of the major components in the depths of the ice giant planets Uranus and Neptune. Their dynamics, evolution, and interior structure are insufficiently understood and models rely imperatively on data for equation of state and transport properties. Despite its great significance, the experimentally accessed region of the ammonia phase diagram today is still very limited in pressure and temperature. Here we push the probed regime to unprecedented conditions, up to ∼350 GPa and ∼40 000 K. Along the Hugoniot, the temperature measured as a function of pressure shows a subtle change in slope at ∼7000 K and ∼90 GPa, in agreement with ab initio simulations we have performed. This feature coincides with the gradual transition from a molecular liquid to a plasma state. Additionally, we performed reflectivity measurements, providing the first experimental evidence of electronic conduction in high-pressure ammonia. Shock reflectance continuously rises with pressure above 50 GPa and reaches saturation values above 120 GPa. Corresponding electrical conductivity values are up to 1 order of magnitude higher than in water in the 100 GPa regime, with possible significant contributions of the predicted ammonia-rich layers to the generation of magnetic dynamos in ice giant interiors.
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Affiliation(s)
- A Ravasio
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
| | - M Bethkenhagen
- École Normale Supérieure de Lyon, Université Lyon 1, Laboratoire de Géologie de Lyon, CNRS UMR 5276, 69364 Lyon Cedex 07, France
- Institut für Physik, Universität Rostock, 18051 Rostock, Germany
| | - J-A Hernandez
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
- Centre for Earth Evolution and Dynamics, University of Oslo, N-0315 Oslo, Norway
| | - A Benuzzi-Mounaix
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
| | - F Datchi
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 place Jussieu, F-75005 Paris, France
| | - M French
- Institut für Physik, Universität Rostock, 18051 Rostock, Germany
| | - M Guarguaglini
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
| | - F Lefevre
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
| | - S Ninet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS UMR 7590, MNHN, 4 place Jussieu, F-75005 Paris, France
| | - R Redmer
- Institut für Physik, Universität Rostock, 18051 Rostock, Germany
| | - T Vinci
- LULI, CNRS, CEA, École Polytechnique-Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
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6
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Ceurvorst L, Betti R, Casner A, Gopalaswamy V, Bose A, Hu SX, Campbell EM, Regan SP, McCoy CA, Karasik M, Peebles J, Tabak M, Theobald W. Hybrid target design for imprint mitigation in direct-drive inertial confinement fusion. Phys Rev E 2020; 101:063207. [PMID: 32688486 DOI: 10.1103/physreve.101.063207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 05/13/2020] [Indexed: 11/07/2022]
Abstract
A target design for mitigating the Rayleigh-Taylor instability is proposed for use in high energy density and direct-drive inertial confinement fusion experiments. In this scheme, a thin gold membrane is offset from the main target by several-hundred microns. A strong picket on the drive beams is incident upon this membrane to produce x rays which generate the initial shock through the target. The main drive follows shortly thereafter, passing through the ablated shell and directly driving the main target. The efficacy of this scheme is demonstrated through experiments performed at the OMEGA EP facility, showing a reduction of the Rayleigh-Taylor instability growth which scales exponentially with frequency, suppressing development by at least a factor of 5 for all wavelengths below 100 μm. This results in a delay in the time of target perforation by ∼40%.
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Affiliation(s)
- L Ceurvorst
- Université de Bordeaux-CNRS-CEA, CELIA, UMR 5107, F-33405 Talence, France
| | - R Betti
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - A Casner
- Université de Bordeaux-CNRS-CEA, CELIA, UMR 5107, F-33405 Talence, France
| | - V Gopalaswamy
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - A Bose
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - S X Hu
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - E M Campbell
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - S P Regan
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - C A McCoy
- Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - M Karasik
- Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375, USA
| | - J Peebles
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - M Tabak
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - W Theobald
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
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7
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Falk K, Holec M, Fontes CJ, Fryer CL, Greeff CW, Johns HM, Montgomery DS, Schmidt DW, Šmíd M. Measurement of Preheat Due to Nonlocal Electron Transport in Warm Dense Matter. PHYSICAL REVIEW LETTERS 2018; 120:025002. [PMID: 29376698 DOI: 10.1103/physrevlett.120.025002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/23/2017] [Indexed: 06/07/2023]
Abstract
This Letter presents a novel approach to study electron transport in warm dense matter. It also includes the first x-ray Thomson scattering (XRTS) measurement from low-density CH foams compressed by a strong laser-driven shock at the OMEGA laser facility. The XRTS measurement is combined with velocity interferometry (VISAR) and optical pyrometry (SOP) providing a robust measurement of thermodynamic conditions in the shock. Evidence of significant preheat contributing to elevated temperatures reaching 17.5-35 eV in shocked CH foam is measured by XRTS. These measurements are complemented by abnormally high shock velocities observed by VISAR and early emission seen by SOP. These results are compared to radiation hydrodynamics simulations that include first-principles treatment of nonlocal electron transport in warm dense matter with excellent agreement. Additional simulations confirm that the x-ray contribution to this preheat is negligible.
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Affiliation(s)
- K Falk
- Institute of Physics of the ASCR, ELI-Beamlines, 182 21 Prague, Czech Republic
| | - M Holec
- Institute of Physics of the ASCR, ELI-Beamlines, 182 21 Prague, Czech Republic
- Centre Lasers Intenses et Applications, Universite de Bordeaux-CNRS-CEA, UMR 5107, F-33405 Talence, France
- Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, 120 00 Prague 1, Czech Republic
| | - C J Fontes
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C L Fryer
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C W Greeff
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H M Johns
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D S Montgomery
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D W Schmidt
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Šmíd
- Institute of Physics of the ASCR, ELI-Beamlines, 182 21 Prague, Czech Republic
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8
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Patankar S, Gumbrell ET, Robinson TS, Floyd E, Stuart NH, Moore AS, Skidmore JW, Smith RA. Absolute calibration of optical streak cameras on picosecond time scales using supercontinuum generation. APPLIED OPTICS 2017; 56:6982-6987. [PMID: 29048046 DOI: 10.1364/ao.56.006982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/27/2017] [Indexed: 06/07/2023]
Abstract
We report a new method using high-stability, laser-driven supercontinuum generation in a liquid cell to calibrate the absolute photon response of fast optical streak cameras as a function of wavelength when operating at fastest sweep speeds. A stable, pulsed white light source based around the use of self-phase modulation in a salt solution was developed to provide the required brightness on picosecond time scales, enabling streak camera calibration in fully dynamic operation. The measured spectral brightness allowed for absolute photon response calibration over a broad spectral range (425-650 nm). Calibrations performed with two Axis Photonique streak cameras using the Photonis P820PSU streak tube demonstrated responses that qualitatively follow the photocathode response. Peak sensitivities were one photon/count above background. The absolute dynamic sensitivity is less than the static by up to an order of magnitude. We attribute this to the dynamic response of the phosphor being lower.
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