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Gekko XII
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Specifications:
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- 12 beam glass laser
- 30 kJ, 0.1-10 ns, 55 TW
- 1053 nm, 527 nm, 351 nm
- 50 J, 0.5 ps, 100 TW, 1019 W cm-2, 1053 nm
(PWM petawatt
module)
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- Nd:glass disk amplifiers for 5 cm, 10 cm, 20 cm and 35 cm beams. From ILE - Laser Fusion group Glass Optics section
- 4 of the 12 beam amplifier chains. From ILE - Laser Fusion group Glass Optics section
- 12 beam amplifiers. From ILE - Laser Fusion group Glass Optics section
- Two chains of large amplifiers. From ILE - Laser Fusion group Glass Optics section
- 10 cm amplifiers. From ILE - Laser Fusion group Glass Optics section
- Petawatt upgrade chain, 35 cm beam.. From ILE - Laser Fusion group Glass Optics section
- Control room. From ILE - Laser Fusion group Glass Optics section
- Group photo in control room From GOD - Glass laser Operation and Development
- Laser amplifiers (at bottom left).
From Osaka University, Research program of Laser Fusion
- XG360 KDP crystal
- Number used in laser : 14
- Weight : 46.4 kg
- Thickness : 10-30 mm
- Aperture : 0.36 meter
- Diameter : 383±12 mm
- Distortion : 1/4 wave
- Comment : largest monolithic, single-crystal units in the world
- Source : Cleveland Crystals, Inc.
- Target chamber (and fuel sphere)
From ICF Target design
- Image of amplifiers during a laser shot.From MPU Group
- CPA grating chamber (Gekko MII).
From MPU Group
- Target chamber outside, inside and wide view,
amplifiers, ... (6 images).
From Plasma Experiments
- Close-up of exploding target.From RT Group
- Image of exploding target.
From Measurement Technology Section
- Diagnostic instrument on target chamber.
From Diagnotic Instruments Group
- x-ray pinhole camera on top of target chamber.
From Diagnotic Instruments Group
- MANDARA
neutron spectrometer with a 841 channel photo-multiplier detector.
From Diagnotic Instruments Group
- Plot of second and third harmonic spectra of exploding target.
From MPU Group
- Photo-dissociation of solid H2. Ion-sphere molecule potential model.
From computer simulation section
- E3 PIC Computer simulation of high intensity laser-matter interaction.
From Simulation group
- Diagram describing hybrid beam generation using a pre-pulse
diverted using a pair of double wedge plates and a x-ray converter
near the target. From Hybrid beam
- Diagram of hydrogen pellet in a 3 mm diameter Haulraum
using an indirect/direct hybrid scheme with external X-ray sources. From Hybrid targets
- Image of hydrogen pellet in a 3 mm diameter Haulraum
using an indirect/direct hybrid scheme with external X-ray sources
(Hybrid Target - B8482). From Hybrid targets
- Plot of ration of experimental yield of external hybrid scheme and computer simulated yields versus gas convergence ratio.
From Hybrid scheme
- Plot of x-ray spectrum of imploding pellet as a function of time
for Ar+16 1s2-1s3p (He b) line and
Ar+17 1s-3p (Ly b) lines.
Images are each 200 mm across.
From MPX Group
- Sound of laser firing
- X-ray spectroscopic measurements of capsule implosion with low modal non-uniformity
Y. Ochi, K. Fujita, I. Niki, H. Nishimura, A. Sunahara, M. Heya, H. Shiraga,
N. Miyanaga, H. Azechi, H. Takabe, K. Mima (Institute of Laser Engineering,
Osaka University)
- Influence of Specularly Reflected Light on Implosion Uniformity in Indirect-Drive Laser Fusion.
H. Nishimura, H. Honda, K. Fujita, Y. Ochi, D. Ohnuki, S. Miyamoto, H Takabe,
K Mima (Institute of Laser Engineering, Osaka University, Japan.)
- Recent Progress of Implosion Experiments with New Gekko XII Laser Facility at
ILE Osaka, Kunioki Mima (Institute of Laser Engineering, Osaka University )
Epitome of the 1995 Annual Meeting of the Division of Plasma Physics Louisville, Kentucky: 6-10 November 1995
- New Experimental Facility on Gekko XII for Investigation of Critical Issues Relevant to ICF
N. Miyanaga, H. Azechi, H. Shiraga, T. Kanabe, M. Nakai, H. Nishimura, H. Fujita, T. Jitsuno, K. Tsubakimoto, T. Yamanaka, M. Nakatsuka, K. Mima (Inst. of Laser Eng., Osaka Univ.)
1998 Division of Plasma Physics Meeting Program, November 16-20, 1998, New Orleans, LA
- Experimental Study on Mode Coupling in Rayleigh-Taylor Instability
N. Miyanaga, T. Kawasaki, M. Nakai, H. Azechi, K. Shigemori, H. Shiraga,
K. Nishihara, T. Yamanaka (Inst. of Laser Eng., Osaka Univ.)
1998 Division of Plasma Physics Meeting Program, November 16-20, 1998, New Orleans, LA
- Nakamura, M.; Kondo, K.; Nishimura, H.; Endo, T.; and others.
Numerical method for finding uniform irradiation conditions of a fusion capsule driven by X-ray radiation.
Laser and Particle Beams, 1992, vol.10, (no.3):421-33.
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Tanaka, K.A.: 1999, BAPS DPP99.
Ultra Intense Laser Pulse Interactions with Planer and Spherical Plasmas for Fast Ignitor
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Miyanaga, N., Kawasaki, T., Nakai, M., Azechi, H., Shigemori, K., Shiraga, H., Nishihara, K., Yamanaka, T. : 1998, BAPS DPP98.
Experimental Study on Mode Coupling in Rayleigh-Taylor Instability
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H. Nishimura, H. Honda, K. Fujita, Y. Ochi, D. Ohnuki, S. Miyamoto, H Takabe, K Mima : 1996, BAPS DPP96.
Influence of Specularly Reflected Light on Implosion Uniformity in Indirect-Drive Laser Fusion.
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Oshikane, Y., Tsukamoto, M., Tanaka, A. K., Nakaji, S., Ohnishi, T., Hasimoto, H., Nakai, M., Takabe, H., Mima, K.,
Kato, Y., Nakai, S., Nishiguchi, A. : 1995, BAPS DPP95.
Observation of plasma density profile in cylinder-type x-ray-driven fusion target by GIR method
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Ochi, Y., Fujita, K., Niki, I., Nishimura, H., Sunahara, A., Heya, M., Shiraga, H. Miyanaga, N., Azechi, H.: 1998, BAPS DPP98.
Takabe, H., Mima, K. : 1998, BAPS DPP98.
X-ray spectroscopic measurements of capsule implosion with low modal non-uniformity
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Mima, K.: 1995, BAPS DPP95.
Recent Progress of Implosion Experiments with New Gekko XII Laser Facility at ILE Osaka
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Azechi , H. : 1996, BAPS DPP96.
Direct-Drive Hydrodynamic Instability Experiments
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Fujita, K., Ochi, Y., Niki, Y., Nishimura, H., Fukao, M., Heya, M., Nishikino, M., Shiraga, H., Azechi, H., Sunahara, A.,
Kawamura, T., Takabe, H., Mima, K., Uschmann, I., Butzbach, R., Förster, E. : 1999, BAPS DPP99.
Recent Results from Time- and Space-resolved X-ray Spectroscopic Measurements of Laser Fusion Plasmas
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M. Vollbrecht, M., Uschmann, I., Förster, E., Fujita, K., Ochi, Y., Nishimura, H., Mima, K. : 1997, J. Quant. Spect. Rad. Transf.
Five channel x-ray imaging of laser fusion plasmas
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Bontoux, T., Saiki, T., Kanabe, T., Fujita, H., Nakatsuka, M. :
1998, Optical Review 5, 234.
Study of Serrated Aperture for a Cassegrain Booster Amplifier
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Tetsuro Kobayashi home page
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