Measurement of K-shell radiation distribution in aluminum wire array plasma

The time-integrated two-dimensional distribution of aluminum wire array Z-pinch plasma K-shell radiation which is characterized by Ly line was measured in a 1.3 MA generator, with spherically bent mica crystal in a specific layout of appropriate design parameters. The employment of spherically bent crystal instead of filter can realize accurate setting of measurement energy region and thus effectively improve the measurement accuracy of K-shell radiation distribution. The results presentedprovide more accurate calibration parameters for the radiation transport codes of Z-pinch plasma.