Author/Authors :
Berry، نويسنده , , Andrew and I. Helsby، نويسنده , , William and T. Parker، نويسنده , , Brian and J. Hall، نويسنده , , Chris and A. Buksh، نويسنده , , Paul S. Hill، نويسنده , , Andy and Clague، نويسنده , , Nick and Hillon، نويسنده , , Mark and Corbett، نويسنده , , Garry and Clifford، نويسنده , , Paul and Tidbury، نويسنده , , Alan and A. Lewis، نويسنده , , Rob and J. Cernik، نويسنده , , Bob and Barnes، نويسنده , , Paul ، نويسنده ,
Abstract :
A second generation of the Rapid readout electronics has been designed, built and commissioned at Daresbury Laboratory. The first application is for a 1D small- and wide-angle scattering X-ray detection system on the new multipole wiggler 6.2 beam-line at the SRS. The ADC per channel system interpolates and yields typically 32 pixels per channel. The wide-angle detector uses 128 channels of electronics to produce 4096 pixels with a FWHM of four pixels, i.e. demonstrates an ability to resolve 1024 peaks across the detector. This corresponds to an FWHM of 400 μm over a 384 mm long (60°) curved detector. A second group of 128 channels instrument the 200-mm-radius quadrant detector for simultaneous small-angle scattering measurements. System rate of over 2×107 events/s for each detector is predicted. A description of the new pipelined digital processing of detected events is given, together with initial beam-line test results.
