Multi-channel filtered X-ray diode array used on PTS facility

In Z-pinch experiments carried on Primary Test Stand（PTS）, we used a multi-channel filtered X-ray diode (XRD) array to measure the soft X-ray total radiant energy, power and energy spectrum emitted from Z-pinches. This paper reports on the theory, performance and major parameters of multi-channel XRD array, and the unfolding calculation. The measurement results and the data analysis are also presented. At last, the spectra measured by multi-channel XRD array are compared with those by transmission grating spectrograph, the total yield data achieved by multi-channel XRD array, bolometer, and flat-response XRD detector, are also compared.