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

Vladimir D. ZVORYKIN; Andrei S. ALIMOV; Sergei V. ARLANTSEV; Boris S. ISHKHANOV; Alexei O. LEVCHENKO; Nikolai N. MOGILENETZ; Victor F. ORESHKIN; Andrei P. SERGEEV; Pavel B. SERGEEV; Victor F. SHTAN'KO; Vasilii I. SHVEDUNOV; Nikolai N. USTINOVSKII

doi:10.1585/pfr.8.3405046

Regular Articles

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

Vladimir D. ZVORYKIN, Andrei S. ALIMOV, Sergei V. ARLANTSEV, Boris S. ISHKHANOV, Alexei O. LEVCHENKO, Nikolai N. MOGILENETZ, Victor F. ORESHKIN, Andrei P. SERGEEV, Pavel B. SERGEEV, Victor F. SHTAN'KO, Vasilii I. SHVEDUNOV, Nikolai N. USTINOVSKII

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Keywords: darkening of fused silica glasses and UV crystals under irradiation by fast electrons, soft and hard X-rays

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2013 Volume 8 Pages 3405046

DOI https://doi.org/10.1585/pfr.8.3405046

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Abstract

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 CaF₂, MgF₂, and Al₂O₃crystals 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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