Pictures of three particle spectrometers: (a) the old version which uses a scintillating fiber array coupled to a fiber-front CCD; (b) the new high-field spectrometer that uses image plate; and (c) the new low-field spectrometer.
New design of dispersion planes for electron and proton detection and their respective dispersion energies.
Experimental setup in the Callisto laser chamber.
Electron spectra for two laser intensities of (dots) and (lines) from two spectrometers fielded at target front (spectrometer 3, lower figure) and target back (spectrometer 8, upper figure).
Proton spectra from the same shots from two spectrometers. The energy steps accessible by radiochromic film pack are marked in the figure for comparison. The detection limit is defined when the signal is comparable to the background.
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