The Advanced Photon Source
a U.S. Department of Energy Office of Science User Facility

Fast CCD

The APS and LBNL have jointly developed the Fast CCD series of highly parallel readout direct-detection CCD cameras. Over a three-year period from 2010-2013, the second generation of the Fast CCD was developed and deployed at the APS.The Fast CCD2 operates in a frame store mode with a 1Mpixel imaging area (30 micron pixels) currently running at 100 fps (sustained rates), but will eventually run at 200 fps in 1 MPixel mode. The APS team has implemented firmware to operate in a ROI mode (960 x 92 pixels) at 1000 fps and plans to implement 5000 fps for 960 x 12 pixels. The APS team was also responsible for mechanical design, the back-end electronics and interface to an ATCA-based high-speed data acquisition system.

In addition, the APS team has developed custom parallel software using MPI to perform real time imaging processing. The software package is based upon a QT-based program developed at LBL, and combines MPI and the EPICS control software into one complete application. The MPI library performs image descrambling, dark subtraction and lower-level discrimination for image storage in sparse matrix format. This was an extension of previous work on image processing using FPGAs. The primary application of this detector is for photon correlation spectroscopy experiments at APS beamline 8-ID. The first commissioning run occurred in December 2013, and by March 2014 the detector was put into routine operation at 8-ID. It had immediate scientific impact by enabling autocorrelation times of 0.001 second (16x times faster than the existing 60 fps detector). In 2019, the Fast CCD was successfully used at 1-ID-E for high-energy (52 keV) Bragg coherent diffraction imaging.

Core APS personnel: John Weizeorick

 

Fast CCD Detector Head and Beamline View

  

Reference Material

Publications (Detector-related)

Publications (Science using the FCCD2 detector from 8-ID)

 

 

08.18.2020