Timing Modes; Table 11-1: Camera Timing Modes - Teledyne PIXIS Manual

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11.1

Timing Modes

The basic PIXIS timing modes are Free Run {No Response}, External Sync {Readout Per
Trigger}, and External Sync {Readout Per Trigger} with Continuous Cleans {Clean Until
Trigger}. These timing modes are combined with the Shutter options to provide the
widest variety of timing modes for precision experiment synchronization.
Refer to

Table 11-1: Camera Timing Modes

Free Run {No Response}
External Sync {Readout Per Trigger}
External Sync {Readout Per Trigger}
External Sync {Readout Per Trigger} with Continuous
Cleans {Clean Until Trigger}
External Sync {Readout Per Trigger} with Continuous
Cleans {Clean Until Trigger}
The shutter options available include Normal, PreOpen {Open Before Trigger}, Disable
Opened {Always Open} or Disable Closed {Always Closed}. Disable simply means that
the shutter will not operate during the experiment. Disable closed {Always Closed} is
useful for making dark charge measurements. PreOpen {Open Before Trigger}, available
in the External Sync {Readout Per Trigger} and External Sync {Readout Per Trigger} with
Continuous Cleans {Clean Until Trigger} modes, opens the shutter as soon as the PIXIS
is ready to receive an External Sync pulse. This is required if the time between the
External Sync pulse and the event is less than a few milliseconds, the time it takes the
shutter to open.
The shutter timing is illustrated in timing diagrams in the following sections. Except for
Free Run, where the modes of shutter operation are identical, both Normal and
PreOpen lines are shown in the timing diagrams and flow chart.
The timing diagrams are labeled indicating the exposure time (t
compensation time (t
greater detail in
selected in the software, the shutter compensation time (the time required to close a
mechanical shutter) will be approximately 0 ms.
PIXIS System Manual
Table 11-1 for additional information.
Mode
), and readout time (t
c
Chapter 7, Exposure, on page 67. Note that if there is no shutter
Shutter Condition
Normal
Normal
PreOpen {Open Before Trigger}
Normal
PreOpen {Open Before Trigger}
), shutter
exp
). These parameters are discussed in
R
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