A method for high-speed digital-based X-ray spectrometer of

摘要

(57) detector [Abstract] high-speed signal processing system, - to receive a data input preamplifier (detector-preamplifier) ​​from (20), perform a spectral analysis of the X-ray radiation detector. It was realized derive the estimated values ​​filtered in their amplitude to detect the presence of the X-ray signal in the data stream that has been digitized, combined digital logic (25) the system is "hard-wired" processor ("hardwired processor By a "), between the programmable digital signal processing computer to tie so that they produce a spectral analysis of the desired scouring the estimate of the amplitude the filter (28), and divides the necessary digital processing step I want to achieve high throughput at low cost. Hardwired processor having a parallel processing channels of high-speed and low-speed two. Low-speed channel to filter the data stream in the triangle filter of time constant long had good energy resolution. The filter data stream triangular filter of short time constant, to detect X-ray event, it checks the overlay, fast channel to obtain the peak values ​​from the low-speed channel for good events.