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  • PACS. 52.50.Jm Plasma production and heating by laser beams - 52.50.Lp Plasma production and heating by shock waves and compression - 44.30.+v Heat flow in porous media  (1)
  • PACS. 87.50.-a Effects of radiation and external fields on biomolecules, cells and higher organisms - 42.55.-f Lasers - 52.25.Nr Emission, absorption, and scattering of X and radiation  (1)
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  • 1
    ISSN: 1434-6079
    Keywords: PACS. 87.50.-a Effects of radiation and external fields on biomolecules, cells and higher organisms - 42.55.-f Lasers - 52.25.Nr Emission, absorption, and scattering of X and radiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: A soft X-ray laser-plasma source, used in radiobiology experiments with yeast cells, was characterised with flat crystal spectrometers and P-I-N diodes, obtaining an absolute measurement of the emission spectrum. A comparison with the results of simulations performed with the code RATION allowed the characterisation of the emitting plasma. A model for the energy deposition in yeast cells was developed to take into account the different cell structures (wall-membrane complex, cytoplasm and nucleus). Dose calculations performed considering the source emission spectrum were compared with direct measurements of transmission through plastic foils and allowed to verify the hypothesis of preferential dose deposition in the outer cellular regions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 12 (2000), S. 509-511 
    ISSN: 1434-6079
    Keywords: PACS. 52.50.Jm Plasma production and heating by laser beams - 52.50.Lp Plasma production and heating by shock waves and compression - 44.30.+v Heat flow in porous media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The impedance mismatch effect in a two-layer (low density plastic foam, and solid aluminum, respectively) plane target compressed by a laser driven shock wave is considered. In such targets the ablative pressure generated by absorption of laser light in the foam layer is amplified when crossing the foam-aluminum interface. In this paper an analytical model is developed to evaluate the shock pressure in the aluminum layer as a function of the density and thickness of the foam layer and of the laser parameters. The model is in good agreement with previously published experimental results [A. Benuzzi et al., Phys. Plasmas 5, 2827 (1998)].
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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