Title :
An 8×8 pixel array IC for X-ray spectroscopy
Author :
Krieger, B. ; Ewell, K. ; Ludewigt, B. ; Maier, M. ; Markovic, D. ; Milgrome, O. ; Wang, Y.J.
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
An integrated circuit providing 64 channels of low-noise signal processing electronics in an 8×8 pixel arrangement has been developed as part of an integrated silicon detector array for high count-rate X-ray spectroscopy applications. Each pixel features low-noise charge integration, programmable peaking time and gain, and an off-chip driver. The 8×8 pixel IC builds upon our previous development of the XPS chip, a 1-dimensional preamplifier-shaper IC for linear silicon detector arrays. The new pixel design features significant improvements to the shaper and output driver stags, including digital peaking time and gain selection, and a low-power charge driver/receiver design. When operated with a cooled, low-capacitance silicon detector, an energy resolution of ~210 eV FWHM was obtained for 5.89 keV X-rays
Keywords :
CMOS digital integrated circuits; X-ray spectrometers; X-ray spectroscopy; digital signal processing chips; high energy physics instrumentation computing; nuclear electronics; position sensitive particle detectors; preamplifiers; pulse shaping circuits; silicon radiation detectors; 1D preamplifier-shaper; 5.89 keV; 8×8 pixel array IC; CMOS; Si; X-ray spectroscopy; digital peaking time; gain selection; integrated Si detector array; integrated circuit; low-noise charge integration; low-noise signal processing electronics; low-power charge driver/receiver design; programmable peaking time; Application specific integrated circuits; Integrated circuit noise; Noise shaping; Photonic integrated circuits; Preamplifiers; Sensor arrays; Silicon; Spectroscopy; X-ray detection; X-ray detectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949880
