CROSSED ENTRANCE SLIT SXM-1 (adjustable pinhole)
Micrometer-driven with opening width adjustable from 7μm to 2000μm (diagonal of the square aperture) or from 5μm to 1414μm (side of the square aperture).
Microscrew reading accuracy: +/- 1μm
NON-MAGNETIC CROSSED SLIT SXM-2 (non-magnetic adjustable pinhole)
The slit is made of non-magnetic materials; other features are the same as for the SXM-1model.