The AT-C8-HV slit was developed for scientists at the APS who needed to get a high precision slit into the immediate proximity of the sample, while still maintaining vacuum and visibility to several backscattering detectors.

The result is this extremely compact AT slit with centered opening.

The slit system holds four in-vacuum motors that set the position and the opening of the aperture. For each dimension, one motor defines the aperture opening and another determines the position of the aperture. Due to the fact that only one motor is moved during a one-dimensional scan, the AT-C8-HV is the optimum choice for high precision scans with a fixed aperture.

Key Facts of AT-C8-HV
Aperture size Maximum: 8 mm x 8 mm
Minimum: Full overlap
Resolution Aperture: 1.016 micron per full step
Translation: 0.508 micron per full step
Accuracy ± 3 micron (over 3 mm)
Vacuum O-ring sealed, high vacuum 10-5 mbar, low outgassing materials
Mechanical dimension 80 mm x 80 mm x 52 mm (housing only)
95 mm x 80 mm x 56 mm (including connector houses)
Standard blades 2 mm thick tungsten carbide blades with a 2 degrees knife-edge profile
Common options Electrical Connections: Can be supplied with flying leads
Special preparation for enabling vacuum <10-6 mbar       Wiring with Teflon insulation

For further product information, you can download technical specifications, technical drawings, wiring and connector possibilities, manuals and 3D files below.