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  • The rate of laser ablation at irradiances of ~2x1014 Wcm-2 of solid iron and aluminum has been measured using the transmission of a neon-like zinc X-ray laser at 21.2 nm through thin iron and aluminum targets. It is shown that the opacity of ablated material falls rapidly with increasing temperatures and decreasing density from the solid value. As ablated plasma becomes transparent to the X-ray laser flux, the thickness of solid, unablated material and hence the rate of ablation can be measured from time resolved X-ray laser transmission. A self-regulating model of laser ablation and fluid code simulations with absorption to thermal plasma of 5-10% show agreement with our measured ablation rates.
  • The rate of laser ablation at irradiances of ~2x1014 Wcm-2 of solid iron and aluminum has been measured using the transmission of a neon-like zinc X-ray laser at 21.2 nm through thin iron and aluminum targets. It is shown that the opacity of ablated material falls rapidly with increasing temperatures and decreasing density from the solid value. As ablated plasma becomes transparent to the X-ray laser flux, the thickness of solid, unablated material and hence the rate of ablation can be measured from time resolved X-ray laser transmission. A self-regulating model of laser ablation and fluid code simulations with absorption to thermal plasma of 5-10% show agreement with our measured ablation rates. (en)
  • Byla měřena úroveňm ablace železa a hliníku při ozáření neon-like zinc X-ray laserem o vlnové délce 21.2 nm o hustotě výkonu ~2x1014 Wcm-2. Měření ukázalo, že neprůsvitnost ablovaného materiálu rychle klesá s růstem teploty a roste s rustem hustoty hmoty. (cs)
Title
  • X-ray lasers as probes to measure plasma ablation rates
  • X-ray lasers as probes to measure plasma ablation rates (en)
  • X lasery jako sondy pro měření podílu plasmové ablace (cs)
skos:prefLabel
  • X-ray lasers as probes to measure plasma ablation rates
  • X-ray lasers as probes to measure plasma ablation rates (en)
  • X lasery jako sondy pro měření podílu plasmové ablace (cs)
skos:notation
  • RIV/68407700:21220/07:02133410!RIV08-MSM-21220___
http://linked.open.../vavai/riv/strany
  • Nečíslováno
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  • S
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  • 461491
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  • RIV/68407700:21220/07:02133410
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  • X-ray lasers; probes (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [664D9CB65188]
http://linked.open...v/mistoKonaniAkce
  • Praha
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  • Warsaw
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  • Proceedings of SPIE -- Volume 6702 Soft X-Ray Lasers and Applications VII
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  • Homer, Pavel
  • Rus, B.
  • Stupka, M.
  • Tallents, G. J.
  • Whittaker, D. S.
  • Mocek, T.
  • Edwards, M. H.
  • Mistry, P.
  • Pert, G. J.
  • Praeg, A.
  • Kozlová, M.
  • Polan, J.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 0277-786X
number of pages
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  • SPIE Europe
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  • 21220
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