- Conference date: 27-31 May 2002
- Location: Aspen, Colorado (USA)
A measurement of the time‐resolved emission of transient X‐ray laser pulses is described. An ultra‐fast X‐UV streak camera set at the focal plane of a flat field Spectrometer was used to obtain the temporal evolution of X‐UV spectra of Ni‐like Ag and Ne‐like Ni plasmas in a small wavelength range covering the lasing lines. The total time resolution of the device was of 1,1 ps. The FWHM duration of the X‐ray laser pulse was measured to be 3.5 ps for Ni‐like Ag (3d94d(3/2,3/2)J=0→3d94p(5/2,3/2)J=1, λ=13.9 nm) and 13±2 ps for Ne‐like Ni (2p53p(1/2,1/2)J=0→2p53s(1/2,1/2)J=1, λ=23.1 nm). Lasing signal was also observed on the 4f‐4d laser line (λ=16nm) in Ni‐like Ag,, in both time‐integrated and time‐resolved spectra.
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