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X-ray spectra of H-like and He-like aluminum ions from aluminum buried in CH layers irradiated with 3Ofs,200 TW laser are measured.The electron temperature and density are derived from line ratios of the He-αresonance line to its satellite lines.Typical temperatures 0f 490-646 eV and electron densities up to 7 × 1020 cm-3are obtained.The results show that the electron density increases and temperature decreases with the increasing CH thickness.