Fourier-space image processing for spherical experiments on OMEGA (invited)
Studies of compressed shell integrity of spherical targets on the 60-beam 30 kJ UV OMEGA laser system involve spatially and temporally resolved measurements of core emission at different x-ray energie...
Studies of compressed shell integrity of spherical targets on the 60-beam 30 kJ UV OMEGA laser system involve spatially and temporally resolved measurements of core emission at different x-ray energie...
A direct electron bombarded charge coupled device for dynamic plasma imaging applications (abstract)
A variety of plasma physics experiments require the recording of continuous time history of x-ray emission. Many laboratories have developed x-ray streak camera technology in order to time resolve x-r...
A variety of plasma physics experiments require the recording of continuous time history of x-ray emission. Many laboratories have developed x-ray streak camera technology in order to time resolve x-r...
Radiographic image analysis of cylindrical implosion experiments (invited)
Rev. Sci. Instrum. 72, 643 (2001); doi:10.1063/1.1315643
Issue Date: January 2001
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Radiography is a heavily used tool for diagnosing laser-based hydrodynamic experiments. A successful experiment relies on the gathering of data over a time window where the relevant physics occurs and on an accurate analysis of those data. Comparison of this experimental data to theory is often best done by generating simulated images from hydrodynamic calculations, including all necessary and important experimental details. Care must be taken to treat both the experimental and theoretical images identically in the analysis. Frequently, image filtering and enhancement routines are used to obtain interface location and perturbation information from the radiographic image. Previous techniques were found to be too sensitive to global image details. New procedures have been developed which utilize local operators that provide better edge or interface identification without bias. These procedures are benchmarked and validated using static radiographic targets of known configuration that mock up experimental situations of interest. The experiment and the image analysis development are described, including discussion of key contributions to the uncertainty of the results.
| History: | Presented 20 June 2000 |
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KEYWORDS and PACS
plasma diagnostics,
X-ray imaging,
radiography,
edge detection,
image enhancement,
physics computing,
laser fusion,
Rayleigh-Taylor instability,
plasma simulation,
fast Fourier transforms
- 52.70.La
Physics of plasmas and electric discharges Plasma diagnostic techniques and instrumentation X-ray and
-ray measurements
- 07.05.Pj
Instruments, apparatus, and components common to several branches of physics and astronomy Computers in experimental physics Image processing - 52.50.Jm
Physics of plasmas and electric discharges Plasma production and heating Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.) - 52.57.-z
Physics of plasmas and electric discharges Laser inertial confinement - 07.85.-m
Instruments, apparatus, and components common to several branches of physics and astronomy X- and-ray instruments
- 52.35.Py
Physics of plasmas and electric discharges Waves, oscillations, and instabilities in plasmas and intense beams Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.) - 52.65.Kj
Physics of plasmas and electric discharges Plasma simulation Magnetohydrodynamic and fluid equation - YEAR: 2001
RELATED DATABASES
PUBLICATION DATA
0034-6748 (print)
1089-7623 (online)
AIP
REFERENCES (18)
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