Quests for inertial fusion energy conducted at GARPUN KrF laser facility

Зворыкин, В. Д.; Arlantsev, S V; Gaynutdinov, R. V.; Kholin, I V; Левченко, А. В.; Mogilenetz, Nikolai N.; Молчанов, А. Г.; Oreshkin, V F; Rogulev, M A; Sagitov, S. I.; Sergeev, A. P.; Stavrovskiĭ, D. B.; Ustinovskii, N. N.; Zayarnyĭ, D A

doi:10.1088/1742-6596/112/3/032055

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…Rep-rate X-ray source based on high-voltage glow discharge (Fig. 16) produced average radiation intensity 2-3 mW/cm 2 in a 50-Hz train of ∼ 1-µs pulses with photon energy of hν = 6-20 keV [19].…”

Section: Glow Discharge Soft X-ray Sourcementioning

confidence: 99%

Degradation of the Transmissive Optics for a Laser-Driven IFE Power Plant under Electron and X-Ray Irradiation

Зворыкин

Alimov

Arlantsev³

et al. 2013

Plasma and Fusion Research

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Several facilities are used to test trasmissive optics of the IFE target chamber and KrF laser driver in regard of transient and residual radiation-induced absorption in the range of 150-1200 nm. Comparative study of radiation darkening of various fused silica glasses, high-purity CaF 2 , MgF 2 , and Al 2 O 3 crystals under irradiation by 300-keV electrons, soft (hν = 6-20 keV) and hard (hν ∼ 400 keV) X-rays is done and better radiation-proof optical materials are selected; the opposite effect of optics bleaching under UV laser light is observed.

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Section: Glow Discharge Soft X-ray Sourcementioning

confidence: 99%

Degradation of the Transmissive Optics for a Laser-Driven IFE Power Plant under Electron and X-Ray Irradiation

Зворыкин

Alimov

Arlantsev³

et al. 2013

Plasma and Fusion Research

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Tailoring magnetic characteristics of (Fe1−xCox)81Zr9B10 amorphous alloys via engineering crystallization processes

Wang

Zuo

et al. 2019

Appl. Phys. A

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Pulse shaping and energy storage capabilities of angularly multiplexed KrF laser fusion drivers

Lehmberg

Giuliani

Schmitt

2009

Journal of Applied Physics

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This paper describes a rep-rated multibeam KrF laser driver design for the 500kJ Inertial Fusion test Facility (FTF) recently proposed by NRL, then models its optical pulse shaping capabilities using the ORESTES laser kinetics code. It describes a stable and reliable iteration technique for calculating the required precompensated input pulse shape that will achieve the desired output shape, even when the amplifiers are heavily saturated. It also describes how this precompensation technique could be experimentally implemented in real time on a reprated laser system. The simulations show that this multibeam system can achieve a high fidelity pulse shaping capability, even for a high gain shock ignition pulse whose final spike requires output intensities much higher than the ∼4MW∕cm2 saturation levels associated with quasi-cw operation; i.e., they show that KrF can act as a storage medium even for pulsewidths of ∼1ns. For the chosen pulse, which gives a predicted fusion energy gain of ∼120, the simulations predict the FTF can deliver a total on-target energy of 428kJ, a peak spike power of 385TW, and amplified spontaneous emission prepulse contrast ratios IASE∕I<3×10−7 in intensity and FASE∕F<1.5×10−5 in fluence. Finally, the paper proposes a front-end pulse shaping technique that combines an optical Kerr gate with cw 248nm light and a 1μm control beam shaped by advanced fiber optic technology, such as the one used in the National Ignition Facility (NIF) laser.

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Quests for inertial fusion energy conducted at GARPUN KrF laser facility

Cited by 5 publications

References 13 publications

Degradation of the Transmissive Optics for a Laser-Driven IFE Power Plant under Electron and X-Ray Irradiation

Degradation of the Transmissive Optics for a Laser-Driven IFE Power Plant under Electron and X-Ray Irradiation

Tailoring magnetic characteristics of (Fe1−xCox)81Zr9B10 amorphous alloys via engineering crystallization processes

Pulse shaping and energy storage capabilities of angularly multiplexed KrF laser fusion drivers

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