Abstract
Spherically bent focusing spectrometers with one- or two-dimensional spatial resolution (FSSR) are commonly used to obtain spectra with λ∕Δλ>1000 from laser and exploding-wire plasmas. The focal properties of such spectrometers make them ideally suited for coupling with x-ray streak cameras when imaging small sources. We discuss the design of a streaked FSSR system intended to measure time-resolved emission spectra with time resolutions <100ps and λ∕Δλ>2000 for source sizes ∼1mm. The narrow spectral range (∼0.04nm) can be adjusted between tests by varying the central Bragg angle (35°–55°) range and/or by exchanging the crystal type. The high spectral resolution is ideal for detailed line shape measurements. An example configuration for studying H- and He-like Ar emission is presented.
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