Monochromatic x-ray radiography for areal-density measurement of inertial fusion energy fuel in fast ignition experiment

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3494383· OSTI ID:22058740

Fujioka, Shinsuke; Fujiwara, Takashi; Tanabe, Minoru; Nishimura, Hiroaki; Nagatomo, Hideo; Ohira, Shinji; Shiraga, Hiroyuki; Azechi, Hiroshi ^[1]; Inubushi, Yuichi ^[2]

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1. Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita Osaka, 565-0871 (Japan)
2. Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871 (Japan)

Ultrafast, two-dimensional x-ray imaging is an important diagnostics for the inertial fusion energy research, especially in investigating implosion dynamics at the final stage of the fuel compression. Although x-ray radiography was applied to observing the implosion dynamics, intense x-rays emitted from the high temperature and dense fuel core itself are often superimposed on the radiograph. This problem can be solved by coupling the x-ray radiography with monochromatic x-ray imaging technique. In the experiment, 2.8 or 5.2 keV backlight x-rays emitted from laser-irradiated polyvinyl chloride or vanadium foils were selectively imaged by spherically bent quartz crystals with discriminating the out-of-band emission from the fuel core. This x-ray radiography system achieved 24 {mu}m and 100 ps of spatial and temporal resolutions, respectively.

• OSTI ID: 22058740
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPRESSION
IMPLOSIONS
INERTIAL CONFINEMENT
KEV RANGE 01-10
LASER RADIATION
MASS RESOLUTION
MEASURING INSTRUMENTS
MONOCHROMATIC RADIATION
PVC
QUARTZ
TEMPERATURE RANGE 0400-1000 K
TIME RESOLUTION
VANADIUM
X-RAY EMISSION ANALYSIS
X-RAY RADIOGRAPHY