Method and apparatus for digitally based high speed x-ray spectr

X-ray or gamma ray systems or devices – Specific application – Absorption

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364498, G01N 23083

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active

056848501

ABSTRACT:
A high speed, digitally based, signal processing system which accepts input data from a detector-preamplifier and produces a spectral analysis of the x-rays illuminating the detector. The system achieves high throughputs at low cost by dividing the required digital processing steps between a "hardwired" processor implemented in combinatorial digital logic, which detects the presence of the x-ray signals in the digitized data stream and extracts filtered estimates of their amplitudes, and a programmable digital signal processing computer, which refines the filtered amplitude estimates and bins them to produce the desired spectral analysis. One set of algorithms allow this hybrid system to match the resolution of analog systems while operating at much higher data rates. A second set of algorithms implemented in the processor allow the system to be self calibrating as well. The same processor also handles the interface to an external control computer.

REFERENCES:
patent: 3872287 (1975-03-01), Koeman
patent: 4593198 (1986-06-01), Pang et al.
patent: 4642811 (1987-02-01), Georgopoulos
patent: 4658216 (1987-04-01), Goulding et al.
patent: 5005146 (1991-04-01), Lakatos et al.
patent: 5210423 (1993-05-01), Arseneau
patent: 5349193 (1994-09-01), Mott et al.
Takahashi, H. et al., "A new pulse height analysis system based on fast ADC digitizing technique," IEEE Transactions on Nuclear Science, pp. 626-629, vol. 40, No. 4, Aug. 1993.
Georgiev, A. et al., "An analog-to-digital conversion based on a moving window deconvolution," IEEE Transactions on Nuclear Science, pp. 1116-1124, vol. 41, No. 4, Aug. 1994.
Al-Haddad, M.N. et al., "Development and testing of a flash analog-to-digital converter based system for pulse shape discrimination of nuclear radiation pulses," IEEE Transactions on Nuclear Science, pp. 1765-1769, vol. 41, No. 5, Oct. 1994.
Farrow, R. et al., "X-ray signal processing electronics for solid state detectors," Rev. Sci. Instrum., pp. 2307-2309, vol. 66, No. 2, Feb. 1995.
Jordanov, V.T. et al., "Digital pulse-shape analyzer based on fast sampling of an integrated charge-pulse," IEEE Transactions on Nuclear Science, pp. 683-687, vol. 42, No. 4, Aug. 1995.
Jordanov, V.T. et al., "Digital techniques for real-time pulse shaping in radiation measurements," Nuclear Instruments and Methods in Physics Research A 353, pp. 261-264 (1994).
Mott, R.B. et al., "Improving EDS performance with digital pulse processing," X-Ray Spectrometry in Electron Beam Instruments, pp. 1-28 (D.B. Williams et al., New York, Plenum) (1994).

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