Ultrafast Pixel Array Camera: Initial measurement results for a Compact 96 channel 10GSa/s data recorder for HEDS applications*

We describe the design and initial characterization measurements for the UPAC-96: Ultrafast Pixel Array Camera. Upac-96 is a compact 96- channel waveform digitizing data acquisition system with a large buffer length (4096 samples per channel) and high timing performance (100ps sample time, <10ps resolution), suitable for applications in HEDP and ICF diagnostics. It is designed to work with a variety of detector arrays such as high-speed photo-diodes and fast X-ray detectors. The system is being integrated with silicon photomultiplier (SiPM) and scintillator arrays to record single-hot neutron pulses for neutron time of flight (nTOF) spectroscopy. We have measured relevant UPAC-96 performance metrics such as timing resolution, trigger rate and its ability to discern various neutron energies as needed for fast imaging and nTOF diagnostics.