(a) The sequence of x-ray pulses arising from a synchrotron radiation source. Four x-ray pulses associated with the orbit of single electron bunch are indicated with dashed lines. (b) A block diagram of the timing setup. The gated detection circuitry sends the diffraction signals arising from x-ray pulses 1–4 to separate channels of a scaler.
(a) Schematic of the gating circuit to produce a pulse synchronized to P0 using a series of logical flip-flops. CFD is a constant fraction discriminator. The flip-flops are logical elements numbered 1–3. (b) Timing diagram of the P0 selection circuit. Note that branching the signals on the diagrams in Figs. 2 and 3 is accomplished using separate outputs of a logic translator (Phillips Scientific., Inc., model 7126) for P0 signals or the CFD for dP0 signals to avoid multiple triggering and signal reflections.
(a) Schematic of a gating circuit producing an output pulse synchronized to P0 using two AND gates. (b) Timing diagram of the P0 selection circuit using two AND gates.
The structural transient signal associated with the piezoelectric distortion of a thin film by a voltage pulse, after Ref. 1.
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