Title :
High spatial resolution silicon read-out system for single photon X-ray detection
Author :
Turchetta, R. ; Anstotz, F. ; Hu, Y. ; Blondé, J.P. ; Dulinski, W. ; Husson, D. ; Schaeffer, M. ; Nygard, E. ; Weilhammer, P.
Author_Institution :
LEPSI, Strasbourg, France
fDate :
8/1/1994 12:00:00 AM
Abstract :
A prototype detection system has been built for single photon X-ray detection which provides precise position and good energy measurements. The detecting element is a silicon microstrip detector, originally developed for high-energy physics. The readout is provided by a 16 channel prototype VLSI circuit, each channel consisting of a low-noise preamplifier followed by an RC-CR shaper (shaping time of 1500 ns) and a discriminator. The self-triggering property of the chip allows efficient X-ray detection. Two readout chips have been connected to the p-side of a FOXFET biased double-sided AC-coupled microstrip detector. The system has been tested with a multi-energy X ray source and at an X-ray diffractometer. Energy calibration is shown together with a few images, proving the good performance of the system for X-ray imaging. A Debye-Scherrer diagram has been recorded
Keywords :
X-ray detection and measurement; calibration; detector circuits; nuclear electronics; position sensitive particle detectors; preamplifiers; semiconductor counters; AC-coupled; Debye-Scherrer diagram; FOXFET biased; Si microstrip detector; VLSI; X-ray imaging; double-sided; energy calibration; high position resolution; high spatial resolution; read-out system; single photon X-ray detection; Energy measurement; Microstrip; Physics; Prototypes; Silicon; Spatial resolution; Very large scale integration; X-ray detection; X-ray detectors; X-ray imaging;
Journal_Title :
Nuclear Science, IEEE Transactions on
