Experimental setup of SMIS 37.
Extracted ion beam current averaged over vs extraction voltage.
The ion charge-state distribution.
Oscillograms of the current to the Faraday cylinder (upper trace) and to the puller (lower trace).
Scheme of experimental beam emittance measurements by the pepper-pot method (cross section at ). The small graphical insert on the right corresponds to pepper-pot design.
Photograph of the scintillator plate luminescence. Extraction voltage .
The beamlet phase portraits reconstructed from Figs. 5 and 6. (a) Phase portraits of the three central beamlets (see the corresponding small graphical insert) and (b) phase portraits of the four beamlets of the first lower row (see the corresponding small graphical insert).
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