Hamamatsu Photonics C9300-124, Инструкция по эксплуатации

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C9300-124 Ver.1.4
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(3) Exposure time setting: External .........................................................EMD L
Exposure begins within 2 µs from the fall {rise} of the external trigger pulse. After this,
when external trigger pulse rises {falls} again, the exposure is stopped within 27 µs,
and the data is read out. After readout, the system waits for the external trigger pulse to
fall {rise} again. The exposure time is controlled according to the external control
pulse’s LO interval {HI interval}. The repeat cycle is controlled by the external control
pulse’s repeat cycle, but the minimum cycle is calculated as shown below. Set the
external control pulse’s repeat cycle so that it is longer than the minimum cycle.
Maximum exposure time is 1 s. When the external control pulse's LO interval {HI
interval} exceeds 1 s, the exposure is stopped and the data is read out (exposure
cannot exceed 1 s).
Note
•
The external control pulse's LO interval {HI interval} must be at least 100 μ s.
Minimum repetition time = readout time + external control pulse’s LO interval {HI
interval} (exposure time)
[Exposure timing]
CCD exposure
Readout signal
from CCD chip
Digital data
output
External trigger
pulse
Electrical
shutter signal
Pulse width
min. 199.3
Readout period
max. 2 µs
max.149.3 µs
[Readout time at each readout mode]
Scan mode Single output Dual output
Normal readout Approx. 406 ms (2.5 Hz) Approx. 221 ms (4.5 Hz)