Princeton Instruments ProEM+ EMCCD, Руководство пользователя

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Chapter 6 Advanced Topics 93
93
Shutter expander:

Shutter Mode:
Normal
Trigger expander:

Trigger Response:
No Response, Readout Per Trigger, or Shift Per
Trigger
Summary
Kinetics mode is a powerful feature that allows a burst of subframes to be captured with
microsecond time resolution. However, careful attention must be paid to the optical and
timing considerations, namely

The rows furthest from the serial register need to be illuminated.

The rest of the active area must be optically masked.

Single trigger {Readout Per Trigger} mode allows the capture of a burst of frame
with just one trigger.

In multiple trigger {Shift Per Trigger} mode, the camera requires a trigger for
each "exposure-shift" cycle.

The highest time resolution between kinetic frames is determined by the window
(subframe) size.

Acquisition must be in Safe Mode if you are using WinView or WinSpec.

Binning and ROI selections are supported as in the standard operation.
Spectra-Kinetics (Option)
Spectra-kinetics (standard for the ProEM+:512BK) is a purchasable software option for
ProEM+:512B and 1024B cameras. When this option is available you will be able to
select Spectra-Kinetics as the readout mode.
ProEM+:512B/BK ProEM+:1024B
Rows
illuminated
Total number of
kinetic frames
(kinetics) Total number of
kinetic frames
(spectra-kinetics) Total number of
kinetic frames
(kinetics) Total number of
kinetic frames
(spectra-kinetics)
32 32 528 64 1037
64 16 528 32 1037
128 8 528 16 1037
256 4 528 8 1037
Table 4. Comparison of Kinetics and Spectra-Kinetics for ProEM+:512B/BK and
ProEM+:1024B
Unlike standard kinetics mode where binning is performed in the serial register, spectra-
kinetics hardware bins the exposed rows into a single row as the rows are being shifted
into the frame transfer area (or under an external mask). By using this technique, the
spectra-kinetics option is able to capture longer-duration events and provide higher
sensitivity than standard kinetics mode. Use of spectra-kinetics allows the ProEM+
camera to acquire the full masked height’s worth of spectra regardless of the height of the