12
THMS/CC Crucible Carrier and
Stainless Steel Ring
This sample loading method is likely to be more
routinely used than the quartz crucible as the
16mm sample cover slips can be discarded after
each experiment.
Insert the THMS/CC into the stage as described in
the previous section .
The THMS/CC should not make contact with the
surface of the silver block and should be suspend-
ed a few millimetres above it.
Place the Stainless Steel Ring (1) within the
THMS/CC.
Tap the edge of the ring lightly to ensure that it
has dropped through the aperture of the THMS/
CC and sits properly on the surface of the silver
block.
It is critical that the ring is able to move freely
inside the aperture of the sample holder and sit
flat against the surface of the silver block.
Use the vacuum tweezers or a pair of tweezers as
shown and place a 16mm glass cover slip (2) into
the stainless steel ring. Tap the edges lightly to
ensure that it sits flat against the surface of the
block. If the cover slip does not sit perfectly flat
against the temperature controlled surface the heat
flow will be compromised and the sample temper-
ature will be significantly different to the dis-
played temperature. The Stainless Steel Ring is
used to push the 16mm cover slip around the
surface of the block when using the XY manipu-
lators.
Using a pipette or tweezers place the sample on
the 16mm cover slip. Ensure that the sample is as
small as possible and that it is as flat as possible.
Heat flow into or out of the sample is affected by
the amount of sample area in contact with the
temperature controlled cover slip. Place a second
16mm cover slip on top of the sample to create a
flat surface for the microscope lens to focus on.
Accurate temperatures can be obtained by keep-
ing the sample as small and flat as possible.
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