Standard Detectors; Retractable Detectors Control; Infrared Ccd Camera - Thermo Scientific Apreo User's Operation Manual

Standard Detectors

The Detectors menu and Detector Settings module / Detector list box show all installed
detectors; the selected one has a tick mark next to its label. When a Detector Settings
module / Mode is selected, its acronym is shown beside the detector label in the
Detectors menu. The availability of detectors (full color label) depends on the actual
conditions.
Detector selection is related to the display and to the selected beam – the system
always reverts to the last detector used for that beam in that display and remembers its
Contrast & Brightness settings.
Detector exchange and modification of its conditions made via the Detector Settings
module are immediate.
During the patterning (option) process the Detector Menu is still in use, but modifications
will not become active until Patterning has stopped or has been interrupted. A typical
circumstance under which changes can be made during a patterning session is Snapshot
or image acquiring. These facilities can be set up in advance. When patterning is stopped,
the last scan detector and scan conditions will be set.

Note
If a detector that is not compatible with the actual vacuum mode is selected, imaging cannot
be started.
Images from individual segments / detectors can be acquired simultaneously in up to four
different displays.
In addition to the standard detectors available, there may be optional ones available for
your system (see Chapters 2 and 7).

Retractable Detectors Control

When any retractable optional detector is installed in the system,
the appropriate Insert / Retract button is added to the Detector
Settings module / Detector CCD to enable control of the equipment
while observing the optical imaging display. The same button is
also present in the appropriate detector module.
To insert any retractable detector, a confirmation dialog appears.
When insertion is not possible, tooltip gives a reason why.

Infrared CCD Camera

Imaging obtained with this camera assists in overall sample and
stage orientation by viewing the inner space of the specimen
chamber (an optical imaging display). It helps protect the
objective lens and retractable detectors against collision when
moving (especially in the Z-direction) or tilting the stage. IR LED's
are used to light the specimen chamber's interior.
C O N F I D E N T I A L – limited rights
Revision A Feb 2018
Operating Procedures: Standard Detectors
User Manual 5-17