Lambda Custom designs

Need a bigger detecor?

With a built-in flytube for small-angle information?
Arc-shaped. L-shaped or a big wall?

Just give us a call. Our specially developed modular system allows for any possible shape. Just scroll through the pictures to get some impressions.

Please note that even huge systems still have full-speed capability – we don’t compromise between size and speed.

We are experienced in big data and data handling. We can deliver a fully integrated solution including server farm or perfectly integrate the detector into your existing data treatment backend. Live analysys and even feedback control loops are possible at 2,000fps thanks to our hardware-accelerated systems.

Sensor Custom Design

Sensor Options


LAMBDA with High-Z sensor is well suited for energies above 20 keV

X-Spectrum has developed versions of the LAMBDA system where the silicon sensor is replaced with one of the “high-Z“ materials, Gallium Arsenide (GaAs) or Cadmium Telluride (CdTe), which provide greater detection efficiency at high X-ray energies. With these sensors, the LAMBDA system combines efficient hard X-ray detection with zero noise, high spatial resolution and high speed. In particular, the 2000 frames per second readout of a high-Z LAMBDA system is more than 1000 times faster than a typical flat-panel detector, enabling time-resolved hard X-ray experiments on millisecond timescales.

Sensor material: Gallium Arsenide or
Cadmium Telluride

As shown to the right, Cadmium Telluride has higher quantum efficiency than Gallium Arsenide at higher X-ray energies, so it is the natural choice for experiments at 60 keV and above. However, CdTe also strongly re-emits fluorescence photons around 25-30 keV when illuminated with higher-energy photons, which can reduce the detected signal and slightly blur the image.

So, GaAs is beneficial in the 25 – 50 keV range. After flat-field correction, GaAs sensors also deliver better image uniformity.

If you consider using high-Z material, contact our sales department beforehand. Together, we’ll find the best solution for your experiment.

Depending on the sensor material the following specifications are valid:

Si GaAs CdTe
Energy range: 6 – 25 keV 8 – 75 keV 8 – 150 keV
Adjustable threshold range: 4 – 40 keV 5 – 50 keV 5 – 75 keV