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X-Ray Slits SLT-100-P


X-Ray Slits SLT-100-P


SLT-100-P is from a new family of X-Ray slits ADC has introduced. The SLT-100-P is ADC’s latest design that incorporates many improvements/feedback we have received from hundreds of our customers that have been using the SLT-100 X-Ray Slits (Blue Slits).


These improvements includes:

-Better O-ring design resulting in a better and long-term consistent vacuum (eliminating any


-Much better quality bearing and simpler assembly

-Bigger micro stepper motor resulting in smoother operation

-Bigger and better quality drive screw mechanism for higher precision and better accuracy


These high-precision slits systems consist of four blades that are housed in an aluminum body. All of these slits use standard micro stepped stepper motors that can be controlled with a wide array of controllers/drivers available on the market. The design incorporates mechanical limit switches.


SLT-100-P Specifications and Options

Aperture size

24 mm x 24 mm

Blades can go "past closed" without clashing "Fully overlap”


<0.16µm precision*


Accuracy ± 2 µm

Blade material

Tungsten or Tantalum, Tungsten Carbide, Cadmium, Boron Nitride

Blade Thickness

Standard 1.5 mm

Thicker blade available; 5, 7 and 10 mm thick blade upon request.

Blade Options

Knife-edge profile (2 degrees slope)

Or round blade edge

Roughness of the jaw edge surface: <0.2µm (rms)

Environmental Options

Air or Vacuum (Tested to 10-6 mbar)

Overall Dimensions

Vacuum: 235 mm x 209 mm x 104 mm

Air: 235 mm x 209 mm x 77 mm

Gearhead Options

Motors come with optional gearhead to increase resolution, 5:1, 10:1

Blade Beam Monitoring

Each blade is isolated to have the ability to monitor the current off the blade

Locking Manual Knobs

Each motor comes standard with a manual locking knob with scale

Encoder Options

Standard: Optional differential rotary encoder

By request: Internal linear encoder with 1um resolution

Motor Options

Bi-polar 2-phase steppers, 5-phase stepper, and IMS motors

* Using a 10:1 gearhead


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, …)