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The Stigmator Control Panel allows the operator to control the three stigmators of the microscope.
Special function : Click with the right-hand mouse button on one of the channels to get a popup-menu.
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The condenser stigmator is used to stigmate the electron beam. It is the default stigmator for modes where the beam is important (like nanoprobe and STEM). Pressing the Condenser stigmator button is equivalent to pressing the Stigmator button on the left-hand control pad plus selecting the condenser stigmator.
The objective stigmator is used to stigmate the HM (high-magnification) TEM image and the LAD (Low-Angle Diffraction) pattern. Pressing the Objective stigmator button is equivalent to pressing the Stigmator button on the left-hand control pad plus selecting the objective stigmator.
The diffraction stigmator is used to stigmate the D (high-magnification) diffraction pattern and the LM (low-magnification) TEM image. Pressing the Diffraction stigmator button is equivalent to pressing the Stigmator button on the left-hand control pad plus selecting the diffraction stigmator.
The None button allows the operator to deselect all stigmators. Pressing None is equivalent to pressing the stigmator button on the left-hand control pad when it is on.
Each stigmator has its own step size. The step size determines the increment with which the stigmator is changed when the Multifunction buttons are turned or the spin buttons of the channels pressed. The step size is changed either with the spin buttons in the control panel or by pressing the -/+ buttons left of the Multifunction-X knob on the left-hand control pad.
Stigmator settings can be stored in three channels. One possible use of the channels is to use them for optical modes that can be slightly different (such as SA and Mh magnifications, because of the small change in objective-lens current). They can also be used to store intermediate results during stigmation (if you are unsure you can get the astigmatism correction better, copy the contents of the current channel to another and continue stigmation with the other channel. You can then always go back to first channel if it gets worse).
The active channel is outlined by a frame around it and by the enabled nature of its spin buttons (the arrows are black; those of the inactive channels are gray).
Use the buttons of the spin control to change the stigmator setting (an alternative to using the Multifunction knobs).
The flap-out button leads to the Stigmator flap-out with the Stigmator Popup control panel.
Copies the contents of the channel in which the mouse was clicked to the clipboard.
Pastes the contents of the clipboard into the channel where the mouse was clicked. This menu items remains grayed (disabled) until a copy action has been done.
Resets the stigmator channel to zero.
Copies the content of the channel listed first to the channel listed second. The copy action is always from the channel where the right-hand mouse click was done to one of the other channels.
Page last modified on 11/23/01
