Kinetics Mode; Figure 32. Kinetics Readout - Princeton PIXIS-XB System User Manual

Chapter 6

Kinetics Mode

Kinetics Mode is a purchased option for WinX applications. Kinetics Mode is
included in the standard LightField application.
Introduction
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 full
frame CCDs to take time-resolved images/spectra. Optical or mechanical masking of
the array is required.
Note: In WinX, if the Kinetics option has been installed in the PIXIS-XB, this readout
mode will be made available when you select the appropriate camera type on the
Hardware Setup
Below is a simplified illustration of kinetics mode. Returning to our 4 × 6 CCD example,
in this case 2/3 of the array is masked, either mechanically or optically and there is a
shutter (or other external device) controlling the exposure of the array to incoming
X-rays. The shutter opens to expose a 4 × 2 region. While the shutter remains open,
charge is quickly shifted just under the mask, and the exposure is repeated. After a third
image is 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 in
Figure 32.
Advanced Topics
dialog.

Figure 32. Kinetics Readout

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