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

Graphic

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

We have 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). These provide greater detection efficiency at high X-ray energies. The result:

  • zero noise
  • high spatial resolution
  • high speed

The 2,000fps readout of a high-Z LAMBDA system is more than 1,000 times faster than a typical flat-panel detector. This allows time-resolved hard X-ray experiments on millisecond timescales.

Sensor material: Gallium Arsenide or
Cadmium Telluride

As shown in the photoelectric absorption graph, Cadmium Telluride has higher quantum efficiency than Gallium Arsenide at higher X-ray energies. This makes CdTe the natural choice for experiments at 60keV and above.

However, CdTe strongly re-emits fluorescence photons around 25–30keV when illuminated with higher-energy photons. This can reduce the detected signal and slightly blur the image.

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

If you’re considering using high-Z material, get in touch and we’ll find the best solution for your experiment.

Depending on the sensor material the following specifications are valid:

Si GaAs CdTe
Recommended option by energy range 6 – 24keV 8 – 75keV 8 – 150keV
Extendede energy range 6 – 25keV 25 – 50keV 50keV+
Adjustable threshold range 4 – 40keV 5 – 50keV 5 – 75keV