Figure 6
Pyrometry (temperature) (red), PIN diode (black) and detection photodiode (blue) oscilloscope traces for two different delay times when using the fast shutter and CCD camera. The oscilloscope triggers off a rising edge of the detection photodiode signal (∼300 mV). After waiting for a user-selected electronic delay time, the shutter is activated and generates the X-ray pulse, delayed by the (constant) mechanical delay time. The mechanical delay time is very repeatable once the shutter position and voltage reference levels are set; for the conditions used here we measured the mechanical delay time as 0.489 ± 0.001 ms. |