About ADC
video introduction
~2.50 min. long
ISO Cert


  • Heidenhain Encoder
  • Cross Roller Bearing
  • Ability to monitor the beam (Optional)
  • Best slit blade edges in the synchrotron community
  • Blade material; Tungsten or Tantalum, Tungsten Carbide, Cadmium, Boron Nitride, or custom
  • Flange-to-Flange Length: 20 to 25 mm
  • Vacuum Level: < 5x10–10 mbar (UHV)
  • Roughness of the jaw edge surface: <0.2µm(rms)
  • Blades can go "past closed" without clashing (Overlapping/Zero beam ~4mm) .
  • Aperture size: 20 mm, 25 mm, 50 mm, & 60 mm
  • Beamline Connection: DN 200, DN 160, DN 100, & DN63
  • Custom configuration is possible, please contact ADC.

The SLT-310 slits unit consists of vertical and horizontal slit mechanisms, a vacuum vessel which houses them, connected to the individual blades, micro stepper motors with linear encoders, limit (home position) switches and electrical connections including internal wiring for drain current measurement system.


There are four fiduciary marks provided per slit unit.  All UHV sections are vacuum tested to better than 5x10–10 torr and have a leak rate of less than 2x10–10 mbar l-1 s-1.


ADC offers the most complete set of ultra-high-precision slits from monochromatic to white beam that includes; Micron precision, encoder option, ability to monitor the beam, best slit blade edges in the synchrotron community, and blades can go "past closed" without clashing (Overlapping/Zero beam). Our slits are being used in many synchrotrons, neutron and x-ray facilities around the world (APS, NSLS, ALS, DLS, NSRRC, BESSY, DESY, CHESS, ESRF, BSRF, CAMD, NSRL, PAL, LNLS, CLS, SSRF, ANKA, KEK, SPring-8, ASP, ELETTRA, MAX-LAB, …)