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Chapter 15 Menus and Dialog Boxes 335
PTG Continuous Pulsing Setup dialog box
When Continuous pulsing, the Pulse Width and Pulse Delay remain constant at the
values specified. They can be entered directly or you can use the spin wheels to achieve
the wanted settings. The units are selected from the drop-down boxes to the right of the
data-entry windows.
Control Buttons:
OK:
Enters the specified values and closes the dialog box, returning you to the PTG
window. Note that the PTG parameters aren’t transmitted to the PTG until you
click on Download to PTG (PTG window).
Cancel:
Closes the dialog box leaving the original settings in effect.
Help:
Opens context-sensitive help for the Continuous Pulsing Setup dialog box.
PTG Interactive Pulse Width and Delay dialog box
The Interactive Pulse Width and Delay dialog box, accessed with the button of the
Custom toolbar, allows you to control the Pulse Width and Pulse Delay parameters of a
DG-535 or PTG pulser while acquiring data.
Parameters
Pulse Width:
The pulse width is the duration of the pulse applied to the PI-MAX
intensifier to gate the photocathode. The units available are nanoseconds (nsec),
microseconds (µsec), or milliseconds (msec). Only some values are allowed, so
the timing generator will adjust the input value to the nearest allowable value.
Figure 294.
PTG
Continuous
Pulsing setup.
Figure 295.
PTG Interactive
Pulse Width
and Delay
dialog box.