Author/Authors :
Madden، نويسنده , , T. and Jemian، نويسنده , , P. and Narayanan، نويسنده , , S. and Sandy، نويسنده , , A.R. and Sikorski، نويسنده , , M. and Sprung، نويسنده , , M. and Weizeorick، نويسنده , , J.، نويسنده ,
Abstract :
We present a data acquisition system to perform on-the-fly background subtraction and lower-level discrimination compression of streaming X-ray photon correlation spectroscopy (XPCS) data from a fast charge-coupled device area detector. The system is built using a commercial frame grabber with an on-board field-programmable gate array (FPGA). The system is capable of continuously processing 60 CCD frames per second each consisting of 1024×1024 pixels with up to 64 512 photon hits per frame.
Keywords :
X-ray photon correlation spectroscopy (XPCS) , X-ray intensity fluctuation spectroscopy (XIFS) , Field-programmable gate array (FPGA)
