Teledyne PIXIS-XF, System Manual

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68 PIXIS-XF System Manual Issue 5
6.4 Kinetics Mode
NOTE:
Kinetics Mode is:
• A purchased option for WinX/32 applications;
• Included in the standard LightField application.
Kinetics mode uses the CCD to expose and store a limited number of images in rapid
succession. The time it takes to shift each line (or row) on the CCD is as short as a few
hundred nanoseconds to few microseconds, depending on the CCD. Therefore the
time between images can be as short as a few microseconds. Kinetics mode allows
frame transfer CCDs to take time-resolved images/spectra.
NOTE:
In WinX/32, if the Kinetics option has been installed in the
PIXIS-XF, this readout mode will be made available when
you select the appropriate camera type on the Hardware
Setup dialog.
Figure 6-11 illustrates a high-level diagram of kinetics mode. Returning to the 4 x 6 CCD
example, in this case 2/3 of the array is masked, either mechanically or optically. The
shutter opens to expose a 4 x 2 region. While the shutter remains open, charge is
quickly shifted just under the mask, and the exposure is repeated. After a third image
has been collected the shutter is closed and the CCD is read out. Since the CCD can be
read out slowly, very high dynamic range is achieved. Shifting and readout are shown
Figure 6-11 .
Figure 6-11: High-Level Diagram: Kinetics Readout
4
4
11-
011
2
_0035
A1 B1 C1 D1
A2
A3
A4
A5
A6
B2
B3
B4
B5
B6
C2
C3
C4
C5
C6
D2
D3
D4
D5
D6
1 2 3
4
A1 B1 C1 D1
A2 B2 C2 D2
A1 B1 C1 D1
A2 B2 C2 D2
A3
A4
B3
B4
C3
C4
D3
D4
A1 B1 C1 D1
A2 B2 C2 D2
A3
A4
B3
B4
C3
C4
D3
D4
A1 B1 C1 D1
A2 B2 C2 D2
A5
A6 B5
B6 C5
C6 D5
D6
A3
A4
B3
B4
C3
C4
D3
D4
A2 B2 C2 D2
A1 B1 C1 D1
5 6