Development of X-ray phase contrast imaging platforms for investigations dynamic evolution of matter in extreme conditions

2018 Fiscal Year Research-status Report

• Project/Area Number: 17K05729
• Research Institution: Osaka University
• Principal Investigator: Pikuz Tatiana 大阪大学, 先導的学際研究機構, 特任准教授(常勤) (20619978)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: Phase contrast imaging / High Resolution Imaging / Pump-probe experiment / LiF detector / XFEL backlighting

Outline of Annual Research Achievements

In 2018, year the significant progress was achieved in analysis and experimental testing of basic concepts: incoherent (NCCPI scheme) and XFEL (CPPI scheme) radiography.
NCCPI. A) Pico-2000 laser (LULI),80 J, 10 ps. Optimization of backlighter x-ray yield in the range of 4 - 5 keV. Variation of target material (Ti, Ni, Pt, Au), plasma size, target configuration (bulk foil, wire), optical magnification, filtering of LiF detector against debris (static regime).The range of setup parameters allow spatial resolution x< 3 um was determined. B) LFEX laser (ILE), 300J/ beam, 1.5 ps). Significant increase of luminosity (Wire targets, Ti, Pt, Cu) was reached. The x of 3 - 4 um in images of opaque grids was confirmed. Unexpected blurring of x due to scattering of x-ray on high-Z filters has found and need to be investigated. For the first time imaging of RTI (Rayleigh-Taylor Instability) target driven by GEKKO laser pulse was recorded.
CPPI, SACLA XFEL. A) The SAXS experiment without screening of direct probe beam and the highly informative first orders of scattering radiation provided. For the first time diffraction pattern from um-rod target was measured at full dynamic range of 1E6 with x 1 um. The images are perfectly consistent with advanced modeling. B) Imaging characterization of XFEL pump and pump beams in two-color pump-probe experiment. C) In situ precise measurement of 1D and 2D focused XFEL beam caustic.
Metrology of LiF detector properties. The universal dependence of LiF photoluminescence (PL) response on the accumulated dose in the range 0.5-10 keV was found.

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

The significant progress of this year research based on numerous experimental results obtained at different facilities. Both developing imaging platforms were tested under various operating conditions. The NCPPI scheme was tested at high power (300J/beam) LFEX laser. At static radiography of test-grids the resolution x 3 um, which much better then size of backlighter source, was confirmed. It was found that the use of filters from medium and high Z materials is limited due to increase of background scattering. Further investigations of this problem will be done. Obtained strongly desired metrological characteristics of LiF detector. For the first time made calibration measurement the coloration efficiency and PL response to the dose of x-ray in the multi-keV range (0.5 - 10 keV). It shown that this response is independent on the photon energy and can be approximated by unique equation. That will allow identical interpretation of radiographic data from independent experiments. The spatial resolution of LiF detector of 1.0 - 1.4 um is found independent of incident photon energy. The record dynamic range of more than 1E6 confirmed in SAXS experiment at SACLA. For the first time SAXS diffraction pattern was recorded without gap around zero and first orders with resolution x 1 um. This result clearly show advances of CPPI scheme for monochromatic radiography of objects with large gradient of density. As a further step it will be applied at BL3 for investigation RTI in dynamic regime. 4 articles published in high ranking journals including Scientific reports.

Strategy for Future Research Activity

1. On the base of study of PL response curve of LiF to the flux and dose of accumulated radiation, completed in the undergoing project, the algorithm of reconstruction the density map of RTI flows from the PL intensity distribution in radiographic snap-shots measured by LiF detector will be developed. This will allow the unique matching the experimental results with simulations.
2. The influence of background thermal radiation from the plasma volume of backlighter source and from the plasma of shock driving laser on the efficiency of colorization of LiF crystal will be investigated theoretically and experimentally. Experiments will be carried out at LULI laser PICO-2000 and ENEA (Frascati) ABC laser. If the effect will be found not negligible, the obtained results will be used for optimization NCPPI scheme to reduce possible degradation of PL signal during measurements.
3. The experiment on phase contrast imaging of Rayleigh-Taylor Instabilities driven by intense ns-laser pulse will be done at SACLA (proved proposal 2019A8037). The CPPI scheme will be applied at the BL3 to observe dynamic of RTI grow for the target with different interface parameters. On the base of preliminary tests, which have also been done at SACLA, BL3 in the frame of current project, the radiographic imaging with micron-size spatial resolution, not reached yet at any other experimental approaches, is expected. According with my knowledges this experiment will be pioneering in the domain of HEDS research.
These results will be submitted as some articles.

Research Products

• [Int'l Joint Research] LULI, Ecole Polytechnique/Bordeaux University(フランス)
  • Country Name: FRANCE
  • Counterpart Institution: LULI, Ecole Polytechnique/Bordeaux University
• [Int'l Joint Research] Helmholtz-Zentrum Dresden-Rossendorf(ドイツ)
  • Country Name: GERMANY
  • Counterpart Institution: Helmholtz-Zentrum Dresden-Rossendorf
• [Int'l Joint Research] Joint Institute for High Temperatures/Skobeltsyn Institute of Nuclear Physics/National Research Nuclear University(ロシア連邦)
  • Country Name: RUSSIA FEDERATION
  • Counterpart Institution: Joint Institute for High Temperatures/Skobeltsyn Institute of Nuclear Physics/National Research Nuclear University
• [Int'l Joint Research] ENEA(イタリア)
  • Country Name: ITALY
  • Counterpart Institution: ENEA
• [Journal Article] Advanced high resolution x-ray diagnostic for HEDP experiments (2018)
  • Author(s): Faenov A. Y.、Pikuz T. A.、Mabey P.、Albertazzi B.、Michel Th.、Rigon G.、Pikuz S. A.、Buzmakov A.、Makarov S.、Ozaki N.、Matsuoka T.、Katagiri K.、Miyanishi K.、Takahashi K.、Tanaka K. A.、Inubushi Y.、Togashi T.、Yabuuchi T.、Yabashi M.、Casner A.、Kodama R.、Koenig M.
  • Journal Title: Scientific Reports Volume: 8 Pages: 16407_1-9
  • DOI: 10.1038/s41598-018-34717-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of new diagnostics based on LiF detector for pump-probe experiments (2018)
  • Author(s): T. Pikuz, A. Faenov, N. Ozaki, T. Matsuoka, B. Albertazzi, N.J.Hartley, K. Miyanishi, K. Katagiri, S. Pikuz, G. Rigon, M. Koenig, K. A. Tanaka, T. Ishikawa, R. Kodama
  • Journal Title: Matter and Radiation at Extremes Volume: 3 Pages: 197-206
  • DOI: 10.1016/j.mre.2018.01.006
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Turbulent hydrodynamics experiments in high energy density plasmas: scientific case and preliminary results of the TurboHEDP project (2018)
  • Author(s): Casner A.、Rigon G.、Albertazzi B.、Michel Th.、Pikuz T.、Faenov A.、Mabey P.、Ozaki N.、Sakawa Y.、Sano T.、Ballet J.、Tzeferacos P.、Lamb D.、Falize E.、Gregori G.、Koenig M.
  • Journal Title: High Power Laser Science and Engineering Volume: 6 Pages: e44_1-15
  • DOI: 10.1017/hpl.2018.34
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] In Situ Characterization of XFEL Beam Intensity Distribution and Focusability by High-Resolution LiF Crystal Detector (2018)
  • Author(s): Pikuz T.A., Faenov A.Ya., Matsuoka T., Albertazzi B., Ozaki N., Hartely N., N.V., Harmand M., Koenig M., Tanaka K.A., Ishikawa T., Kodama R.
  • Journal Title: Proceedings of ICXRL 2016 Volume: - Pages: 109-115
  • DOI: 10.1007/978-3-319-73025-7_17
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Ionization and Radiation properties of plasma created by ultra-intense femtosecond laser pulses interaction with medium- and high-Z foils (2018)
  • Author(s): Pikuz T.A., Faenov A.Ya., Alkhimova M.A., Nishiuchi M., Skobelev I.Yu., Pikuz S.A., Ryazantsev S.N., Sakaki H., Pirozhkov A.S., Zigler A., Kodama R., Kondo K.
  • Organizer: Second Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Turbulent Hydrodynamics Experiments in High Energy Density settings (2018)
  • Author(s): Casner A., Mailliet C., Rigon G., Albertazzi B., Michel T., Sano T., Pikuz T., Tzeferacos P., Lamb D., Ballet J., Falize E., Sakawa Y., Martinez D.A., Khan S., Masse L., Smalyuk V.A., Koenig M.
  • Organizer: Second Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Characterization of a X-ray source contact microscopy applicationobtained from laser-produced plasma (2018)
  • Author(s): Salvadori M., Andreoli P.L., Bollanti S., Bombarda F., Cipriani M., Consoli F., Cristofari G., De Angelis R., Di Giorgio G., Flora F., Giulietti D., Mezi L., Migliorati M., Akhimova M., Pikuz S., Pikuz T.
  • Organizer: 5th International Conference on Frontier in Diagnostic Technologies
  • Int'l Joint Research
• [Presentation] Revealing the parameters of laser-plasma and FEL X-ray sources using LiF detector (2018)
  • Author(s): Makarov S.S., Pikuz S.A., Pikuz T.A., Ivanov K.A., Dubatkov M.A., Buzmakov A., Grum-Grzhimailo A.N., Matsuoka T., Matsuyama S., Yamauchi K., Ozaki N., Albertazzi B., Kawachi T., Ishikawa T., Kodama R.
  • Organizer: International Conference on Ultrafast Optical Science
  • Int'l Joint Research
• [Presentation] Characterization of a X-ray source contact microscopy application obtained from laser-produced plasma (2018)
  • Author(s): Salvadori M., Andreoli P.L., Bollanti S., Bombarda F., Cipriani M., Consoli F., Cristofari G., De Angelis R., Di Giorgio G., Flora F., Giulietti D., Mezi L., Migliorati M., Akhimova M., Pikuz S., Pikuz T.
  • Organizer: International Laser Plasma Summer School LaPlaSS "Diagnostic techniques for laser-plasma experiments at High repetition rate”. Salamanca
  • Int'l Joint Research
• [Presentation] Rayleigh-Taylor instabilities relevant to Supernovae Remnants (2018)
  • Author(s): Rigon G., Casner A., Albertazzi B., Michel Th., Mabey P., Falize E., Ballet J., Pikuz S., Sano T., Sakawa Y., Pikuz T., Faenov A., Osaki N., Kuramitsu Y., Valdivia M.P., Tzeferacos P., Lamb D., Koenig M.
  • Organizer: 12th International Conference on High Energy Density Laboratory Astrophysics (HEDLA)
  • Int'l Joint Research
• [Presentation] Development of x-ray phase contrast imaging method for investigation of Rayleigh-Taylor Instabilities in the context of laboratory astrophysics (2018)
  • Author(s): Pikuz T., Faenov A.Ya., Ozaki N., Matsuoka T., Albertazzi B., Hartley N., Pikuz S., Makarov S., Grum-Grzhimailo A., Casner A., Rigon G., Koenig M., Tanaka K.A., Ishikawa T., Kodama R.
  • Organizer: International Conference on Matter and Radiation at Extremes
  • Int'l Joint Research
• [Presentation] X-ray spectroscopic diagnostics of stainless steel plasma produced by femtosecond ultra-intense laser pulses (2018)
  • Author(s): Pikuz T., Faenov A., Alkhimova M., Skobelev I.Yu., Pikuz S.A., Nishiuchi M., Sakaki H., Pirozhkov A.S., Nishitani K., Miyahara T., Watanabe Y., Kodama R., Kondo K.
  • Organizer: International Conference on High Energy Density Science
  • Int'l Joint Research
• [Presentation] Wide-range high-resolution LiF crystal x-ray detector calibrated with synchrotron radiation (2018)
  • Author(s): Makarov S.S., Pikuz S.A., Ryazantsev S.N., Grum-Grzhimailo A.N., Senin R.A., Pikuz T.A., Faenov A.Ya., Skopintsev P., Lazarev S., Rose M., Vartaniants I.
  • Organizer: XXIII International Conference on Equations of State for Matter
  • Int'l Joint Research