The same x-ray head used in dental examinations was driven with a synthesized waveform to produce bursts of 100 rectangular current pulses during which time data were logged from the 4 Ge detectors. A quiescent period between bursts was used for processing of the logged data. Voltage, current, and x-ray intensity were logged concurrently.  

Delay in filament heating lowers currents in the first 10 pulses.

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