JEOL JSM-6390 LA, User Manual

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J. M. Allaz © March 14, 2021
G.2) Activating the CL detector
Once the CL detector arm is in place, proceed as following to activate the CL detector:
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Turn ON the IR camera.
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Move your sample close to the CL detector (usually between 16 and 17 mm for
regular thin sections / round mounts). Always check the IR camera to avoid a disaster!
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Turn OFF the IR camera when the sample & detector are in place.
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Perform a beam alignment using the “SEI” mode (see Section F.3 ).
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Change the signal to “BEIC” in JEOL SEM.
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Turn ON the CL detector (red button “POWER” on CL controller box).
IMPORTANT: Brightness & contrast (B&C) for CL image are first adjusted using the
“Brightness” & “Contrast” buttons on the CL control box! Once the right B&C is
found on the control box, then adjust the B&C of the JEOL SEM program.
Figure 17b. Control box for the “Centaurus” CL detector.
You can now start acquiring CL images with the Thermo NSS software:
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To start Thermo NSS follow the instructions given in Sections H .
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To acquire a single or mosaic image, follow the instructions given in Sections I .
WARNING! If the “OVERLOAD” button turns ON (Fig. 17b) , it means that the detector
is saturated with light. Either you forgot to turn OFF the IR camera or you activated the CL
detector while the SEM is opened. Identify the source of this overload (turn OFF the IR
camera, close and pump the sample chamber), and press the “RESET” button, or turn
OFF the CL detector and ON again. If the problem persists, contact the lab manager.
G.3) Deactivating the CL detector
Any time you perform a sample change or at the end of your session , you MUST
deactivate the CL detector and retract it before removing your sample!
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Change the signal to “SEI” in JEOL SEM.
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Turn OFF the CL detector (red button “POWER” on CL controller box).
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Turn ON the IR camera and move the stage down to Z = 30 mm (IMPORTANT!) .
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Retract the CL detector (see Fig. 17 , just do it all backwards J ).
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IMPORTANT! Lock the arm when the CL detector is fully retracted! If you cannot
insert the lock, it is likely because the arm is not fully retracted.
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You can now safely do a sample change or remove your sample to end your session.