Comparison of simulated X-ray conversion efficiency of laser produced iron plasma with experimental results

Demir, A.; Kenar, Necla; Tallents, G.J.

doi:10.1007/s00340-004-1443-4

Cited by 2 publications

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“…This characteristic increases the X-ray conversion efficiency (CE) obtained as the X-ray energy divided by the laser energy. In the previous experimental and theoretical studies for the laser produced plasmas, X-ray conversion efficiencies have been calculated for different materials such as Cu [3][4][5][6]10], C [4][5][6], Mg [4], Al [4][5]12], Si [4,13], Ti [4,13], Fe [3][4][7][8][9][10], Ni [4,10,13], Mo [4], Ag [4,12], Sn [4], Ta [4,11], Au [4,14], Pb [4], Bi [4], Cl [4,[12][13], Co [10], Zn [10] in the X-ray energy range between 1 and 8 keV.…”

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confidence: 99%

Investigation of effects of double pulse configuration on efficiency of Ni-like and Co-like X-ray resonance lines emitted from laser produced silver plasmas

2006

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Ni-like and Co-like X-ray resonance line spectra are simulated between 16Å and 32Å emitted from silver plasma using Nd:YAG laser and its second, third and fourth harmonics for double pulse configurations. In addition to spectral lines, X-ray intensities obtained from free-bound and free-free continuum emission from Zn-, Cu-, Ni-, Coand Fe-like ions are calculated between 1Å and 30Å. The intensity for 280 ps prepulse is 5.4 × 10 12 W/cm 2 and for 1.2 ps short pulse is 4.4 × 10 15 W/cm 2 . The time difference between pre-pulse and short pulse is varied between 150 ps and 750 ps. X-ray energy conversion efficiencies and X-ray pulse durations are calculated from X-ray spectra. For example, maximum X-ray energy conversion efficiency for 750 ps time difference is obtained as 0.54 % for fundamental harmonic Nd:YAG laser, 1.01 % for second harmonic, 1.46 % for third harmonic, 1.86 % for fourth harmonic over 2π sr. The ratio of Co-like 3d → 4f and Ni-like 3d → 4f resonance line intensities is calculated to determine electron temperature.

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