1. MTF SLIT
COMPONENTS
Adjusting Blocks and Mounting Plate
Steel Blocks
Clamps
Shims
Slide Blocks

2. Two Blocks of Oil Hardening Steel are separated by shims 100um thick
Two Blocks of Oil Hardening Steel are separated by shims 100um thick. This forms the slit for MFT measurements.
The blocks are secured via two sets of clamps made from aluminum blocks and stainless steel bolts

3. The steel blocks need to be adjustable so the slit can be centered under the XRAY beam. To allow adjustment, the bocks have a groove which allow them to move along a ridge on the slide blocks.

4. The actual adjustment is made by turning the left and right adjusting screws. A dial indicator is mounted on one of the adjusting blocks to determine the amount of movement.

5. The steel blocks are pulled
together with the stainless
steel shims separating them
by 100 microns. The blocks
are clamped loosely at the
bottom. Then the sliding
blocks are placed in the
grooves of the steel blocks.
The dial indicator is bolted to one of the adjusting blocks. Adjusting screws are placed in the threaded adjusting blocks. The adjusting blocks are then bolted to the underside of the mounting plate.

6. The mounting plate
ready for assembly.
The mounting plate is placed
over top of steel blocks.

7. The top clamps are set in place
and tightened.