Tecnai on-line help manual -- Options - UT Southwestern

<strong>Tecnai</strong> on-line help Options 72Options Software version 25.3 Smart Tilt OptionsThe Smart Tilt Options contains several settings for using SmartTilt.Use compucentric tiltingSmart Tilt fully supports compucentric tilting (tilting where the non-eucentric behavior of the β tilt axis iscompensated). The compucentric tilting checkbox allows selection or deselection of compucentric tilting.This choice is a system-wide setting. The same setting may be selected elsewhere, e.g in theCompucentricity Control Panel itself.Buttons visibleThe Smart Tilt display has the possibility to display a toolbar with buttons for often-used functions. TheButtons visible option decides if this toolbar is visible or not.Show reminderThe various Smart Tilt procedure rely on a properly centered diffraction pattern at the start. The operatorcan either make sure that the pattern is always properly centered. Or the software can remind theoperator in each.User buttonsYou can assign some of the Smart Tilt functions to User Buttons (L1..L3, R1..R3) on the <strong>Tecnai</strong> ControlPads. This may make it easier to control, especially when intensively observing the diffraction pattern onthe viewing screen. Each function can be assigned to one of the User Buttons by selecting one from thedrop-down list. If None is selected, the function is not connected to a User Button. When a function isassigned to a button already occupied, the function of the occupied button will be switched automaticallyto en empty user button.The buttons are disconnected as long as Smart Tilt is not loaded or when it is hidden (e.g. by pressingthe Display button).Focus CBED and SAEDFor the focus/defocus function of Smart Tilt two choices exist, one being CBED (Convergent BeamElectron Diffraction), the other SAED (Selected Area Electron Diffraction). For CBED the Intensity (C2) isused to switch between focussed diffraction pattern and shadow image. For SAED it is the diffractionfocus that is used.