Custom Modes; Figure 39. Multiple Trigger Timing Diagram - Princeton PIXIS-XB System User Manual

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In multiple trigger mode, the shutter (if there is an external X-ray shutter) is opened when
Acquire or Focus {Run} is clicked and each "exposure-shift" cycle in the acquisition is
triggered independently by a pulse applied at the EXT SYNC connector. This mode is
useful when each subframe needs to be synchronized with a pulsed external light source
such as a laser. Once the series is complete, the shutter closes and readout begins. Since
the shutter is open during the entire series of images, irregularly spaced external pulses
will result in exposures of different lengths. Once the series has been read out the camera
is ready for the next series. This timing is shown in Figure 39, where a series of 6 frames
is collected with 6 External Sync pulses.

Custom Modes

Introduction
Custom Chip and Custom Timing modes are available as an option for WinX
applications; {Custom Sensor} and Custom Timing are standard (sensor and readout
mode-dependent) in LightField. These modes are intended to allow data acquisition at the
fastest possible rates for your camera. Custom Chip {Custom Sensor} allows you to
reduce the apparent size of the CCD array and Custom Timing allows you to select a
faster vertical shift time.
Custom Chip
Introduction
In addition to Binning and ROI (previously discussed in the manual), there is a third way
to reduce Readout Time – Custom Chip {Custom Sensor}. This feature allows you to
redefine the size of the CCD's active area via software. Unlike setting a smaller region of
interest (ROI), which also involves reading out fewer pixels, this mode does not incur
overhead from discarding or skipping the rest of the rows. And, unlike both Binning and
ROI, Custom Chip {Custom Sensor} also relies on some form of array masking to ensure
that no light falls outside the currently set active area.
Note: Custom Chip is a WinX option. Custom Sensor is standard with LightField:
availability is sensor-dependent.
PIXIS-XB System Manual

Figure 39. Multiple Trigger Timing Diagram

Version 2