5 Putting HTK 1200N into Operation
B40IB006EN-D
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5 Putting HTK 1200N into Operation
5.1 Alignment of the Sample Holder
Proper alignment of the HTK 1200N High-Tempera-
ture Oven-Chamber is important to get good data
quality. The surface of the sample holder must be
parallel to the axis of the X-ray beam (
-zero line)
and in the centre plane of the goniometer.
1
Alignment slit
2
Slit for X-ray beam
3
Thermocouple
Part of the HTK 1200N accessories is an alignment
slit to enable precise alignment.
The alignment of the HTK 1200N consists of height
(z-) alignment and rotation (
) alignment. The ac-
tual alignment procedure depends on the type of
adapter (rigid or with motorized z-stage) and on the
diffractometer type.
Read the related sections in the instruction man-
ual for your diffractometer
before you start the
alignment.
Alignment is best done in two steps:
1. Coarse alignment with the upper edge of the
empty sample holder.
2. Fine alignment with the slit for X-ray beam in the
alignment slit
Make sure that the X-ray beam is properly aligned
before you mount the HTK 1200N High-Tempera-
ture Oven-Chamber (read the
Diffractometer In-
struction Manual
for detailed information). Good
beam alignment is important, because HTK 1200N
is aligned relative to the X-ray beam (
-zero line).
5.2 Height adjustment with Rigid
Adapter
1. Install the chamber into the already aligned
goniometer (use the standard sample holder to
align the goniometer)
.
2. Remove the sample holder flange and place the
alignment slit onto the sample holder such that
the 0.1mm slit is positioned in the beam path.
3. Insert the sample holder flange with mounted
alignment slit in the chamber.
Align the height as follows:
The height (z-position) of the HTK 1200N relative to
the X-ray beam can be adjusted with the alignment
equipment mounted on the base-plate of
HTK 1200N.
1. Slightly loosen the screws (1) which fix the
adapter to the chamber base-plate so that the
chamber can move up and down on the adapter.
NOTICE
Do not perform
the
rotation (
) alignment
yourself if you have a diffractometer with
align-
ment preserving sample stage fitting
. For
such instruments the sample stage is usually
pre-aligned.
Re-alignment should only be done by a service
engineer from your diffractometer manufacturer.
2
3
1
NOTICE
Risk of Damage
Perform the alignment of the HTK 1200N at
room temperature and with embedded sample
holder flange.
The
alignment slit melts
, if it is used at ele-
vated temperatures!
