7 January 2004 Efficiency of 1.5- to 4.5-keV x-ray production from laser plasmas
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Abstract
Laser to X-ray conversion efficiencies in the 1.5 - 4.5 keV photon energy range from solid targets irradiated by 2 ps duration KrF laser pulses of wavelength 248 nm and irradiance up to 2 x 1016 Wcm-2 have been measured. Unusually, a CCD camera working in single photon counting mode has been used to record the emitted spectra with moderate (λ/Δλ ≈ 50) spectral resolution. Efficiencies in converting laser energy to X-ray emission into 2π steradian are in the range 10-3 to 10-6 respectively for photon energies from 1.5 to 4.5 keV.
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Greg J Tallents, Greg J Tallents, Jalal Pestehe, Jalal Pestehe, Edmond Turcu, Edmond Turcu, Y. Abou-Ali, Y. Abou-Ali, Graeme J. Hirst, Graeme J. Hirst, Michael F. Powers, Michael F. Powers, Waseem Shaikh, Waseem Shaikh, } "Efficiency of 1.5- to 4.5-keV x-ray production from laser plasmas", Proc. SPIE 5196, Laser-Generated and Other Laboratory X-Ray and EUV Sources, Optics, and Applications, (7 January 2004); doi: 10.1117/12.505920; https://doi.org/10.1117/12.505920
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