Figure 2
Schematic overview of the single-shot DAQ system for the CCD-based hemispherical electron energy analyzer (VG SCIENTA, R4000-10kV). An external trigger signal is fed into the NI PCIe-6363 DAQ device via SCB-68 and starts a procedure to acquire an image of energy-analyzed photoelectrons through the CCD camera. The photoelectron image is immediately transferred to the stacked memory and stored in mass storage, and displayed on the monitor simultaneously. The intensity of the photon beam is also acquired via the ADC channel or counter channel of the NI PCIe-6363.  [article HTML]

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