Publications

Twin-elliptical-crystal time- and space-resolved soft x-ray spectrometer

Lake, Patrick W.; Bailey, James E.; Rochau, G.A.; Gard, P.; Petmecky, D.; Bump, M.; Joseph, N.R.; Moore, T.C.; Nielsen-Weber, L.B.

Elliptical crystal spectrometers equipped with time-gated microchannel plate (MCP) detectors provide time-, space-, and spectrally resolved data. A common problem is that the number of time resolution elements is limited by the number of MCP frames. The number of frames that fit on a given MCP is limited by the image size and the alignment tolerance. At the Z facility these problems have been addressed with twin-elliptical-crystal spectrometers. Using two crystals and detectors doubles the number of frames available. This enables measurements with ∼350 ps time resolution while still recording data from an ∼4 ns wide time window. Alternatively, the twin crystal design allows simultaneous measurements with different crystals to investigate different spectral regimes. © 2006 American Institute of Physics.