Development of a Temporally and Spatially Resolved Grazing Incidence Spectrometer

摘要

The design considerations are presented for a grazing incidence spectrometer which will resolve both temporally and spatially the emission from a wide variety of plasmas. The basis of the design involves use of microchannel plates (MCPs) which are curved to conform to the Rowland circle of the spectrometer. The spectra are obtained when the anode is properly biased. The use of multiple anodes allows gating and with appropriate delays results in sequential time resolution of a few nanoseconds. Simultaneous gating of the anodes with spatial resolution of < 100 mu for any given time frame can also be obtained. The efficiency of this spectrometer is also compared with conventional grazing incidence spectrometers. (ERA citation 05:027635)