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Chapter 15 Menus and Dialog Boxes 223
Control Buttons:
Mouse:
Allows you to specify a region to be processed using the mouse. Simply drag a
box in the data region of the active window and then click on
Mouse
. The
Frame
and
Range
parameters will assume the values of the defined region. An
ROI mismatch error message will appear if the absolute values of the A and B
data regions aren’t the same. Note that the
Mouse
button is only active when
the
A
or
B
tab page is selected.
Process:
Initiates the selected operation.
Close:
Closes the window with no action taken.
Help:
Opens context-sensitive help for the active tab page.
Camera State dialog box
In a system having the PI-MAX camera, this dialog box appears when the software is
booted. It allows the user to set the camera start-up state. The three selections are:
Keep in Safe Mode:
This is the default. Whenever the software is booted, the Safe
mode is established, biasing the PI-MAX intensifier’s photocathode off. The
intensifier gain and exposure time in effect when the software was last shut
down are retained.
Restore Last Settings:
Making this selection followed by clicking on OK will restore
the mode in effect when the software was last shut down. Thus, clicking on the
radio button could put the camera in
Safe
mode,
Shutter
mode or
Gate
mode,
whichever was the active state at the time of shutdown. In addition, the
Intensifier Gain in effect when the software was shut down is also restored, as is
the set Exposure Time.
Restore Defaults:
Making this selection followed by clicking on OK establishes
Safe
mode and an
Intensifier Gain
setting of 128. Intensifier gain range is 0 to 256
arbitrary units. The mid-range setting of 128 works well in many measurements.
It additionally sets the Exposure Time to 10 ms.
Once the selection has been made, the user can easily change the gate mode via the
Experiment Setup
Main
page. In systems having the PI-MAX camera, the Experiment
Setup
Main
page allows the user to directly select
Safe
mode,
Shutter
mode or
Gate
mode.
Figure 197.
Camera state
dialog box.