Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera

doi:https://doi.org/10.1063/1.2981171

Title: Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera

Full Record
Other Related Research

Abstract

A shell target with a cone for guiding the heating beam has been proposed for the fast ignition scheme. Implosion of such target is no longer symmetric because of the cone. A fast two-dimensional x-ray imaging technique, two-dimensional (2D) sampling image x-ray streak camera was applied for the first time to observation of the dynamics of implosion and core plasma. X-ray emission image of the plasma was sampled with two-dimensionally distributed image sampling points, streaked with the tube, and the recorded signals were reconstructed as sequential 2D frame images. Shape and movement of the core plasma were clearly observed.

Authors:

Shiraga, Hiroyuki; Lee, Myongdok; Mahigashi, Norimitsu; Fujioka, Shinsuke; Azechi, Hiroshi ^[1]

Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871 (Japan)

Publication Date:: 2008-10-15

OSTI Identifier:: 21266581

Resource Type:: Journal Article

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 79; Journal Issue: 10; Conference: HTPD08: 17. topical conference on high-temperature plasma diagnostics, Albuquerque, NM (United States), 11-15 May 2008; Other Information: DOI: 10.1063/1.2981171; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BEAMS; EMISSION; IMAGE PROCESSING; IMAGES; IMPLOSIONS; PLASMA; PLASMA DIAGNOSTICS; PLASMA HEATING; SAMPLING; SIGNALS; STREAK CAMERAS; THERMONUCLEAR IGNITION; TWO-DIMENSIONAL CALCULATIONS; X RADIATION

Citation Formats


                    Shiraga, Hiroyuki, Lee, Myongdok, Mahigashi, Norimitsu, Fujioka, Shinsuke, and Azechi, Hiroshi. Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera.  United States: N. p., 2008. 
        Web.  doi:10.1063/1.2981171.

Copy to clipboard


                    Shiraga, Hiroyuki, Lee, Myongdok, Mahigashi, Norimitsu, Fujioka, Shinsuke, & Azechi, Hiroshi. Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera.  United States.  https://doi.org/10.1063/1.2981171

Copy to clipboard


                    Shiraga, Hiroyuki, Lee, Myongdok, Mahigashi, Norimitsu, Fujioka, Shinsuke, and Azechi, Hiroshi. Wed .  
        "Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera".  United States.  https://doi.org/10.1063/1.2981171.

Copy to clipboard


                    
@article{osti_21266581,

  title        = {Observation of asymmetrically imploded core plasmas with a two-dimensional sampling image x-ray streak camera},

  author       = {Shiraga, Hiroyuki and Lee, Myongdok and Mahigashi, Norimitsu and Fujioka, Shinsuke and Azechi, Hiroshi},

  abstractNote = {A shell target with a cone for guiding the heating beam has been proposed for the fast ignition scheme. Implosion of such target is no longer symmetric because of the cone. A fast two-dimensional x-ray imaging technique, two-dimensional (2D) sampling image x-ray streak camera was applied for the first time to observation of the dynamics of implosion and core plasma. X-ray emission image of the plasma was sampled with two-dimensionally distributed image sampling points, streaked with the tube, and the recorded signals were reconstructed as sequential 2D frame images. Shape and movement of the core plasma were clearly observed.},

  doi          = {10.1063/1.2981171},

  url          = {https://www.osti.gov/biblio/21266581},
  journal      = {Review of Scientific Instruments},

  issn         = {0034-6748},

  number       = 10,

  volume       = 79,

  place        = {United States},

  year         = {2008},

  month        = {10}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1063/1.2981171

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

One-dimensional and multichannels multi-imaging x-ray streak camera for imploded core plasma of shell-cone target

Journal Article Jiayong, Zhong ; Shiraga, Hiroyuki ; Azechi, Hiroshi - Review of Scientific Instruments

Recently one-dimensional and multichannels multi-imaging x-ray streak camera (1D+McMIXS) has been proposed as an ultrafast diagnostic tool for imploded core plasma of shell-cone target. This diagnostic system can provide much more information of core plasma dynamics, such as the shell trajectory before the maximum compression, two dimensional (2D) x-ray images, and 2D map of electron temperature. The 1D+McMIXS was used in an implosion experiment of a shell target with a cone for fast ignition at Gekko XII laser facility. The interaction between the core plasma and the tip of the cone was observed and revealed some detailed structures. A seriesmore »« less
https://doi.org/10.1063/1.2965007
Multi-imaging x-ray streak camera for ultrahigh-speed two-dimensional x-ray imaging of imploded core plasmas (invited)

Journal Article Shiraga, H ; Fujioka, S ; Jaanimagi, P A ; ... - Review of Scientific Instruments

Ultrahigh-speed two-dimensional x-ray imaging by using an image sampling technique on an x-ray streak camera has been developed and applied to observe the imploded core plasmas of inertial confinement fusion targets. Various one-dimensional and two-dimensional sampling techniques of two-dimensional images were compared, and the multi-imaging x-ray streak camera (MIXS), was found to be one of the most successful schemes. MIXS was used in an implosion experiment of a shell target with a cone for fast ignition at the OMEGA laser facility. Nonuniform structure in imploded core plasma dynamics was clearly observed with temporal and spatial resolutions of 10 ps andmore » 10-20 {mu}m, respectively.« less
https://doi.org/10.1063/1.1789249
Measurement of heating laser injection time to imploded core plasma by using x-ray framing camera

Journal Article Koga, Mayuko ; Fujiwara, Takashi ; Sakaiya, Tatsuhiro ; ... - Review of Scientific Instruments

A simultaneous measurement of imploded core plasma and injection time of heating laser is conducted by using an x-ray framing camera (XFC). The experiments are performed using Gekko XII laser system for implosion of the deuterated polystyrene (CD) plastic shell target and Peta Watt (PW) laser system for heating. The time of PW laser injection is observed as the bright zone in the XFC image. The measured x-ray intensity profiles fit the Gaussian profiles well. The calculations of microchannel plate by using dynode model explain these broadened temporal profiles qualitatively. The peak position of fitted x-ray intensity profile is almostmore »« less
https://doi.org/10.1063/1.2968105
One- and two-dimensional fast x-ray imaging of laser-driven implosion dynamics with x-ray streak cameras

Journal Article Shiraga, H ; Heya, M ; Nakasuji, M ; ... - Review of Scientific Instruments

One- (1D) and two-dimensional (2D) x-ray imaging techniques with x-ray streak cameras have been developed and utilized for investigating implosion dynamics of laser fusion targets. Conventional streaked 1D images of the shell motion of the imploding target was recorded together with the time-resolved 2D multi-imaging x-ray streak images of the core shapes on the same x-ray streak camera. Precise comparison of the core dynamics between the experimental and simulation results was performed with an accuracy of 30 ps by fitting the trajectories of the x-ray emission from the imploding shell. {copyright} {ital 1997 American Institute of Physics.}
https://doi.org/10.1063/1.1147700
National Ignition Facility core x-ray streak camera

Journal Article Kimbrough, J R ; Bell, P M ; Christianson, G B ; ... - Review of Scientific Instruments

The National Ignition Facility (NIF) core x-ray streak camera will be used for laser performance verification experiments as well as a wide range of physics experiments in the areas of high-energy-density science, inertial confinement fusion, and basic science. The x-ray streak camera system is being designed to record time-dependent x-ray emission from NIF targets using an interchangeable family of snouts for measurements such as one-dimensional (1D) spatial imaging or spectroscopy. the NIF core x-ray streak camera will consist of an x-ray-sensitive photocathode that detects x rays with 1D spatial resolution coupled to an electron streak tube to detect a continuousmore »« less
https://doi.org/10.1063/1.1318262

Similar Records